chore(deps): update actions/checkout action to v6 (#546)

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

Author: renovate[bot]

.github/workflows/helmchart.yaml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 

.github/workflows/images.yaml

@@ -14,7 +14,7 @@ jobs:
       contents: read
       packages: write
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 0
     - uses: docker/login-action@v4
@@ -33,7 +33,7 @@ jobs:
     env:
       FORCE_COLOR: 1
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Put back the git branch into git (Earthly uses it for tagging)
       run: |
         branch=""

.github/workflows/tests.yaml

@@ -13,7 +13,7 @@ jobs:
       SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
       FORCE_COLOR: 1
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Put back the git branch into git (Earthly uses it for tagging)
       run: |
         branch=""