build(deps): bump actions/checkout from 5 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/continuous-delivery.yml

@@ -17,7 +17,7 @@ jobs:
       tag: ${{ steps.build_push.outputs.tag }}
     steps:
       - name: Checkout source code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Build and push
         id: build_push
@@ -34,7 +34,7 @@ jobs:
       tag: ${{ steps.build_push.outputs.tag }}
     steps:
       - name: Checkout source code
-        uses:  actions/checkout@v5
+        uses:  actions/checkout@v6
 
       - name: Build and push
         id: build_push
@@ -51,7 +51,7 @@ jobs:
       tag: ${{ steps.build_push.outputs.tag }}
     steps:
       - name: Checkout source code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Build and push
         id: build_push
@@ -68,7 +68,7 @@ jobs:
       tag: ${{ steps.build_push.outputs.tag }}
     steps:
       - name: Checkout source code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Build and push
         id: build_push
@@ -85,7 +85,7 @@ jobs:
       tag: ${{ steps.build_push.outputs.tag }}
     steps:
       - name: Checkout source code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Build and push
         id: build_push
@@ -106,7 +106,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout source code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Merge
         uses: ./.github/actions/merge