chore: bump actions/checkout from 6 to 7 (#246)

Bumps [actions/checkout](https://github.com/actions/checkout) from 6 to 7.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v6...v7)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/merge.yaml

@@ -27,7 +27,7 @@ jobs:
     runs-on: ${{ matrix.runner }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v4
       - name: Docker login
@@ -53,7 +53,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
       - name: Download digests
         uses: actions/download-artifact@v8
         with:

.github/workflows/pull-request.yaml

@@ -13,7 +13,7 @@ jobs:
     steps:
     # Checkout should always be before setup-go to ensure caching is working
     - name: checkout
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
     - name: Install Go
       uses: actions/setup-go@v6
       with:
@@ -30,7 +30,7 @@ jobs:
     steps:
     # Checkout should always be before setup-go to ensure caching is working
     - name: checkout
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
     - name: Install Go
       uses: actions/setup-go@v6
       with:

.github/workflows/release.yml

@@ -11,7 +11,7 @@ jobs:
       is_highest: ${{ steps.highestTag.outputs.is_highest }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           fetch-depth: 0
       - name: Get tag
@@ -40,7 +40,7 @@ jobs:
     runs-on: ${{ matrix.runner }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v4
       - name: Docker login
@@ -66,7 +66,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
       - name: Download digests
         uses: actions/download-artifact@v8
         with: