chore(deps): update actions/checkout action to v7

Author: renovate[bot]

.github/workflows/build-and-deploy.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v7
     - uses: ruby/setup-ruby@v1
       with:
         bundler-cache: true # runs 'bundle install' and caches installed gems automatically

.github/workflows/validate-projects.yml

@@ -13,7 +13,7 @@ jobs:
   validate-yaml:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: get go-yq
         run: |
           wget https://github.com/mikefarah/yq/releases/latest/download/yq_linux_amd64 -O yq