chore(deps): update actions/checkout action to v6 (#613)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/chromatic.yml

@@ -15,7 +15,7 @@ jobs:
   chromatic:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
         with:
           fetch-depth: 0
       - name: Install pnpm

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ jobs:
   lint-and-build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - uses: pnpm/action-setup@v4
       - uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5
         with:

.github/workflows/release-please.yml

@@ -56,7 +56,7 @@ jobs:
     if: ${{ needs.release-please.outputs.theme_release == 'true' }}
 
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
         with:
           ref: ${{ github.event.inputs.rev || github.sha }}
 
@@ -98,7 +98,7 @@ jobs:
     if: ${{ needs.release-please.outputs.pack_release == 'true' }}
 
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - uses: pnpm/action-setup@v4
       - uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5
         with:
@@ -131,7 +131,7 @@ jobs:
     if: ${{ needs.release-please.outputs.npm_release == 'true' }}
 
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - uses: pnpm/action-setup@v4
       - uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5
         with:
@@ -158,7 +158,7 @@ jobs:
       - release-npm
 
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
+      - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
         if: ${{ needs.release-please.outputs.theme_release == 'true' }}
       - name: Mark VSCode theme release as latest release
         env: