chore: update actions/checkout action to v6 (#597)

Author: taiga-family-bot

.github/workflows/assign-author.yml

@@ -7,7 +7,7 @@ jobs:
   assign:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4.3.1
+      - uses: actions/checkout@v6.0.2
       - uses: taiga-family/ci/actions/setup/variables@main
       - uses: toshimaru/auto-author-assign@v2.1.2
         continue-on-error: true

.github/workflows/auto-merge.yml

@@ -11,7 +11,7 @@ jobs:
     outputs:
       matrix: ${{ steps.matrix.outputs.value }}
     steps:
-      - uses: actions/checkout@v4.3.1
+      - uses: actions/checkout@v6.0.2
       - uses: taiga-family/ci/actions/setup/variables@main
       - id: matrix
         run: echo "value=$PR_JOBS_NAME" >> $GITHUB_OUTPUT
@@ -33,7 +33,7 @@ jobs:
     needs: [wait]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4.3.1
+      - uses: actions/checkout@v6.0.2
       - uses: taiga-family/ci/actions/setup/variables@main
       - uses: taiga-family/ci/actions/auto/approve/double@main
         if: env.IS_TAIGA_FAMILY_BOT_PR_AUTHOR == 'true'

.github/workflows/ci.yml

@@ -9,7 +9,7 @@ jobs:
   ci:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4.3.1
+      - uses: actions/checkout@v6.0.2
         with:
           persist-credentials: false
       - uses: taiga-family/ci/actions/setup/variables@main

.github/workflows/release.yml

@@ -21,7 +21,7 @@ jobs:
     if: "!contains(github.event.head_commit.message, 'chore(release)')"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4.3.1
+      - uses: actions/checkout@v6.0.2
       - uses: taiga-family/ci/actions/run/release-it@main
         with:
           mode: ${{ github.event.inputs.mode || 'minor' }}