chore(deps): update actions/checkout action to v6 (#106)

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

Author: renovate[bot]

.github/workflows/build-commitfest.yml

@@ -28,7 +28,7 @@ jobs:
       images: ${{ env.IMAGES }}
     steps:
     - name: Checkout Code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Set env variables from defaults.json
       run: |

.github/workflows/build.yml

@@ -34,7 +34,7 @@ jobs:
       pg_major: ${{ env.PG_MAJOR }}
     steps:
     - name: Checkout Code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Set env variables from defaults.json
       run: |

.github/workflows/continuous-delivery.yml

@@ -36,7 +36,7 @@ jobs:
       feature_type: ${{ env.FEATURE_TYPE }}
     steps:
     - name: Checkout Code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Set env variables from defaults.json
       run: |

.github/workflows/reusable-e2e.yml

@@ -91,7 +91,7 @@ jobs:
           echo "-----------------------------------------------------"
 
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: cloudnative-pg/cloudnative-pg
           ref: ${{ inputs.cnpg_branch }}

.github/workflows/run-e2e-test.yml

@@ -33,7 +33,7 @@ jobs:
       feature_type: ${{ env.FEATURE_TYPE }}
     steps:
     - name: Checkout Code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Set env variables from defaults.json
       run: |