feat: Adding yamllint github workflow

.github/workflows/label-synchronization.yaml

@@ -27,3 +27,4 @@
           github-token: ${{ secrets.GITHUB_TOKEN }}
           skip-delete: false
           yaml-file: .github/labels.yaml
+

.github/workflows/label-test-reusable.yml

@@ -0,0 +1,15 @@
+---
+name: "label-sync"
+
+on:
+  push:
+    branches:
+      - '**'
+
+permissions:
+  # write permission is required to edit issue labels
+  issues: write
+
+jobs:
+  labelsync:
+    uses: schubergphilis/mcaf-github-workflows/.github/workflows/label-synchronization.yaml@feature/yamllint_workflow

.github/workflows/pr-yamllint.yml

@@ -0,0 +1,22 @@
+---
+name: "pr-yamllint"
+
+on:
+  pull_request:
+    types:
+      - opened
+      - synchronize
+
+
+  push:
+    branches:
+      - '**'
+
+#permissions:
+#  contents: read
+#  issues: write
+#  pull-requests: write
+
+jobs:
+  yamllint:
+    uses: schubergphilis/mcaf-github-workflows/.github/workflows/pr-yamllint.yml@feature/yamllint_workflow

.github/workflows/terraform-validation.yaml

@@ -2,15 +2,15 @@
 
 on:
   pull_request:
-
+ 
 permissions:
   contents: write
   pull-requests: write
-
+ 
 env:
   GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
   TF_IN_AUTOMATION: 1
-
+  
 jobs:
   fmt-lint-validate:
     runs-on: ubuntu-latest
@@ -122,7 +122,7 @@
           output-file: README.md
           output-method: inject
           working-dir: .
         continue-on-error: true # added this to prevent a PR from a remote fork failing the workflow
 
   tfsec:
     runs-on: ubuntu-latest
@@ -166,5 +166,5 @@
 # Check | Description | Reason
 
 # CKV_GIT_5 | Ensure GitHub pull requests have at least 2 approvals | We strive for at least 1 approval
 # CKV_GLB_1 | Ensure at least two approving reviews are required to merge a GitLab MR | We strive for at least 1 approval
 # CKV_TF_1 | Ensure Terraform module sources use a commit hash | We think this check is too restrictive and that versioning should be preferred over commit hash