chore(deps): Bump postcss and next in /examples/next/tutorial

[dependabot]

Bumps postcss and next. These dependencies needed to be updated together.
Updates postcss from 8.5.18 to 8.5.25

Release notes

Sourced from postcss's releases.

8.5.25

• Fixed 8.5.17 visitor regression.
• Fixed list.split() for non-string values (by @​amir-rezaei).

8.5.24

• Preserve the BOM after the processing (by @​hdimer).

8.5.23

• Do not load source map without opts.from for security reasons.

8.5.22

• Fixed custom property losing semicolon before a comment (by @​sarathfrancis90).

8.5.21

• Fixed childless at-rule losing semicolon before comment (by @​sarathfrancis90).
• Fixed docs (by @​isker).

8.5.20

• Fixed missing space if AtRule#params is set after (by @​sarathfrancis90).
• Fixed mixing AST error on warnings (by @​MahinAnowar).

8.5.19

• Fixed cleaning before for new nodes inserted to Root (by @​MahinAnowar).

Changelog

Sourced from postcss's changelog.

8.5.25

• Fixed 8.5.17 visitor regression.
• Fixed list.split() for non-string values (by @​amir-rezaei).

8.5.24

• Preserve the BOM after the processing (by @​hdimer).

8.5.23

• Do not load source map without opts.from for security reasons.

8.5.22

• Fixed custom property losing semicolon before a comment (by @​sarathfrancis90).

8.5.21

• Fixed childless at-rule losing semicolon before comment (by @​sarathfrancis90).
• Fixed docs (by @​isker).

8.5.20

• Fixed missing space if AtRule#params is set after (by @​sarathfrancis90).
• Fixed mixing AST error on warnings (by @​MahinAnowar).

8.5.19

• Fixed cleaning before for new nodes inserted to Root (by @​MahinAnowar).

Commits

• 08c989c Release 8.5.25 version
• 24f6814 Fix 8.5.17 visitor regression
• f2fa53f Add supply chain security requirement to PostCSS plugin guide
• 10edf0b fix: return empty array for empty string in list.split (#2121)
• 0ebe8ad Release 8.5.24 version
• 73218c6 Update dependencies
• 9a114f6 Preserve the BOM when stringifying (#2119)
• 9069261 Fix types check
• eb9e1fe Release 8.5.23 version
• 9d19c78 Update dependencies
• Additional commits viewable in compare view

Updates next from 16.2.12 to 16.3.0

Release notes

Sourced from next's releases.

v16.3.0

Core Changes

• Update vendored lodash to 4.17.23 to fix CVE-2025-13465: #91558
• Fix invalid HTML response for route-level RSC requests in deployment adapter: #91541
• Normalize encoded dynamic placeholders in app routes: #91603
• Fix(pages-router): restore Content-Length and ETag for /_next/data/ JSON responses: #90304
• Update tokio from 1.43.0 to 1.47.3: #90945
• [turbopack] Simplify snapshotting logic: #91178
• Turbopack: enable server HMR for app route handlers: #91466
• turbo-tasks-backend: batch find_and_schedule_dirty using for_each_task_meta: #91497
• [turbopack] Use bail! instead of panic! for duplicate module ident error: #91636
• Skip loadBindings() Lightning CSS check during next start: #91538
• turbo-tasks-backend: batch schedule dirty tasks in aggregation_update: #91461
• Turbopack: Add importModule() support to webpack loaders: #89630
• turbo-persistence: fix mmap page alignment and improve error context in MetaFile::open_internal: #91640
• turbopack-css: demote recoverable CSS parse warnings to Warning severity: #91524
• feat(node-streams): add config flag, define-env, and env precedence test: #90427
• Rename /_next/webpack-hmr to /_next/hmr: #91415
• Add per-slot error attribution for instant validation using slot markers and config depth preference: #91610
• Handle encoded params further: #91627
• [turbopack] Respect {eval:true} in worker_threads constructors: #91666
• Fix missing route in otel spans without base-server: #91665
• [turbopack] Optimize compaction cpu usage: #91468
• Fix layout segment optimization: move app-page imports to server-utility transition: #91701
• Fix server actions in standalone mode with cacheComponents: #91711
• turbo-persistence: remove Unmergeable mmap advice: #91713
• turbopack: move "compact database" tracing span to backend layer: #91693
• Turbopack: lazy require metadata and handle TLA: #91705
• Fix adapter outputs for dynamic metadata routes: #91680
• Turbopack: fix webpack loader runner layer: #91727
• [turbopack] Remove incorrect debug_assert in try_read_task_cell: #91699
• Add module count field to module graph tracing spans: #91697
• turbopack-cli: add --persistent-caching flag for filesystem-backed cache: #91657
• Turbopack: pull in updated vercel/nft tests: #91651
• [turbopack] Improve regressed build speed on cross-compiled MUSL: #91477
• [Segment Bundling] [Scaffolding] Ensure inlining hint correctness: #91320
• [Segment Bundling] [Scaffolding] Track which segments can be omitted from prefetch: #91438
• Avoid deprecated TS node10 moduleResolution defaults: #91847
• [turbopack] Rebuild the docker build scripts: #91799
• Fix TS6 baseUrl deprecation for extended tsconfig: #91855
• Add next internal post-build CLI command for Turbopack database compaction: #91336
• Turbopack: Define Effect as a trait instead of a closure: #89080
• Turbopack: Implement TraceRawVcs and NonLocalValue correctly for Effects: #89133
• turbo-tasks-backend: improve print_cache_item_size instrumentation: #91742
• Turbopack: switch from base40 to base38 hash encoding (remove ~ and . from charset): #91832
• Use charCodeAt for normalizePathTrailingSlash: #91380
• Turbopack: Only patch lockfile when bindings fails to load: #91379
• [create-next-app] Skip interactive prompts when CLI flags are provided: #91840
• [devtools] Make instant navs panel draggable: #91914
• [Segment Bundling] Bundle static prefetches based on size: #91439

... (truncated)

Commits

• d73f562 v16.3.0
• 2e0d4cb Edits to turbopackFileSystemCache (#96531)
• 86df9c7 docs: cover direct visits and client navigations in the instant() e2e example...
• 47a52c0 [turbopack / next.js] Add an end-to-end test for new root detection (#96544)
• 8e878d4 Remove implicit Partial Prefetching opt-in from instant (#96539)
• e37ddd1 Fix deploy test TypeScript exclusions (#96545)
• 8a4920c docs: clarify first-party Skills workflows (#96495)
• 4344b83 Flag newly disabled deploy tests (#96505)
• 459617a fix: double fragment on navigation (#93132)
• cbf0cef Enable TypeScript CLI by default (#96497)
• Additional commits viewable in compare view

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