gitActions: Add 'make vendor' check

Add a step to run 'make vendor' to ensure the vendor directory is
up-to-date, failing the workflow if changes are needed.

Signed-off-by: Ram Lavi <[email protected]>

Author: RamLavi

.github/workflows/check.yaml

@@ -23,7 +23,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v3
       with:
-        go-version: 1.22
+        go-version: 1.22.10
 
     - name: Build
       run: time make build
@@ -34,6 +34,15 @@ jobs:
         version: v1.54.2
         args: --timeout 3m --verbose cmd/... pkg/...
 
+    - name: Check vendors
+      run: |
+        make vendor
+        if [[ -n "$(git status --porcelain)" ]]; then
+          echo "Vendor is out-of-date. Please run 'make vendor' locally and commit the changes"
+          git status --porcelain
+          exit 1
+        fi
+
     - name: Test
       run: make test