chore(deps): update github-actions to v6

Author: renovate[bot]

.github/workflows/autofix.yml

@@ -5,7 +5,7 @@ jobs:
   autofix:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
       - run: npm i -fg corepack && corepack enable
       - uses: actions/setup-node@v6
         with: { node-version: lts/*, cache: pnpm }

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ jobs:
   tests:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
       - run: npm i -g --force corepack && corepack enable
       - uses: actions/setup-node@v6
         with: { node-version: lts/*, cache: pnpm }
@@ -17,18 +17,18 @@ jobs:
       - run: pnpm build
       - run: pnpm test:types
       - run: pnpm vitest --coverage
-      - uses: codecov/codecov-action@v5
+      - uses: codecov/codecov-action@e79a6962e0d4c0c17b229090214935d2e33f8354 # v6
         with: { token: "${{ secrets.CODECOV_TOKEN }}" }
   publish:
     runs-on: ubuntu-latest
     permissions: { id-token: write, contents: read }
     needs: tests
     if: contains('refs/heads/main', github.ref) && github.event_name == 'push'
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
         with: { fetch-depth: 0 }
       - run: npm i -fg corepack && corepack enable
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6
         with: { node-version: lts/*, cache: "pnpm" }
       - run: pnpm install
       - run: pnpm changelogen --bump --canary nightly