Add PAT in the repo secret and use it for pushing kind image to personal repo

Signed-off-by: Unnati Mishra <unnati.mishra@broadcom.com>

Author: CodesbyUnnati

.github/workflows/nightly-build-kind-images.yml

@@ -96,6 +96,13 @@ jobs:
         uses: actions/setup-go@v5
         with:
           go-version: '1.23'
+      
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: codesbyunnati
+          password: ${{ secrets.GHCR_PAT }}
 
       - name: Build and Push Kind Node Image
         run: |

.github/workflows/nightly-e2e.yaml

@@ -47,6 +47,13 @@ jobs:
           TAG="${{ matrix.k8s_version }}-${TIMESTAMP}"
           echo "full_image=${{ env.KIND_NODE_IMAGE_BASE }}:$TAG" >> $GITHUB_ENV
 
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: codesbyunnati
+          password: ${{ secrets.GHCR_PAT }}
+
       - name: Create Kind Cluster (Nightly)
         uses: helm/kind-action@v1
         with: