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

Author: renovate[bot]

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

@@ -18,7 +18,7 @@ jobs:
     steps:
       - name: Check out the repo
         id: checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Get the version
         id: get_version

.github/workflows/create-linked-release.yml

@@ -64,7 +64,7 @@ jobs:
       - name: Checkout repository code
         # We need to check out the code to be able to check for existing tags and push new ones.
         if: steps.validate_tag.outputs.is_valid == 'true'
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
           fetch-tags: true

.github/workflows/pr-checks.yml

@@ -13,7 +13,7 @@ jobs:
     steps:
       - name: Checkout code
         id: checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up Python
         id: setup-python