chore: bump actions/checkout from 5 to 6 (#577)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/check.yml

@@ -4,7 +4,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       # waiting on: https://github.com/actions/setup-node/issues/531
       - run: corepack enable
       - uses: actions/setup-node@v6

.github/workflows/publish.yml

@@ -28,7 +28,7 @@ jobs:
       name: NPM
       url: https://www.npmjs.com/package/pg-error-enum/v/${{ needs.release.outputs.version }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       # waiting on: https://github.com/actions/setup-node/issues/531

.github/workflows/sync.yml

@@ -9,7 +9,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           ssh-key: ${{ secrets.ACTION_DEPLOY_KEY }}
       # waiting on: https://github.com/actions/setup-node/issues/531

.github/workflows/test.yml

@@ -4,7 +4,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       # waiting on: https://github.com/actions/setup-node/issues/531
       - run: corepack enable
       - uses: actions/setup-node@v6