fix: add workflow run number to cluster names to prevent duplicates

The PR validation workflow was creating duplicate cluster names across
multiple workflow runs, causing cluster creation failures. Updated all
cluster name generation to include github.run_number, ensuring unique
cluster names for each workflow execution.

Pattern changed from: {channel-name}-{k8s-version}-{distribution}
To: {channel-name}-{k8s-version}-{distribution}-{run-number}

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: adamancini

.github/workflows/wg-easy-pr-validation.yaml

@@ -342,8 +342,9 @@ jobs:
           set +e  # Disable exit on error to handle failures gracefully
           
           # Normalize cluster name to match task expectations (replace dots with dashes)
+          # Include run number to ensure unique cluster names across workflow runs
           K8S_VERSION_NORMALIZED=$(echo "${{ matrix.k8s-version }}" | tr '.' '-')
-          CLUSTER_NAME="${{ needs.setup.outputs.channel-name }}-$K8S_VERSION_NORMALIZED-${{ matrix.distribution }}"
+          CLUSTER_NAME="${{ needs.setup.outputs.channel-name }}-$K8S_VERSION_NORMALIZED-${{ matrix.distribution }}-${{ github.run_number }}"
           echo "Checking for existing cluster: $CLUSTER_NAME"
           
           # Get clusters with error handling
@@ -467,8 +468,9 @@ jobs:
           set +e  # Disable exit on error to handle failures gracefully
           
           # Normalize cluster name to match task expectations (replace dots with dashes)
+          # Include run number to ensure unique cluster names across workflow runs
           K8S_VERSION_NORMALIZED=$(echo "${{ matrix.k8s-version }}" | tr '.' '-')
-          CLUSTER_NAME="${{ needs.setup.outputs.channel-name }}-$K8S_VERSION_NORMALIZED-${{ matrix.distribution }}"
+          CLUSTER_NAME="${{ needs.setup.outputs.channel-name }}-$K8S_VERSION_NORMALIZED-${{ matrix.distribution }}-${{ github.run_number }}"
           echo "Creating cluster: $CLUSTER_NAME"
           
           # Use the replicated CLI to create the cluster with normalized name
@@ -535,8 +537,9 @@ jobs:
         working-directory: ${{ env.APP_DIR }}
         run: |
           # Normalize cluster name to match task expectations (replace dots with dashes)
+          # Include run number to ensure unique cluster names across workflow runs
           K8S_VERSION_NORMALIZED=$(echo "${{ matrix.k8s-version }}" | tr '.' '-')
-          CLUSTER_NAME="${{ needs.setup.outputs.channel-name }}-$K8S_VERSION_NORMALIZED-${{ matrix.distribution }}"
+          CLUSTER_NAME="${{ needs.setup.outputs.channel-name }}-$K8S_VERSION_NORMALIZED-${{ matrix.distribution }}-${{ github.run_number }}"
           task cluster-ports-expose CLUSTER_NAME="$CLUSTER_NAME"
 
       - name: Validate cluster readiness
@@ -608,8 +611,9 @@ jobs:
         id: set-cluster-matrix
         run: |
           # Create cluster info for test deployment job
+          # Include run number to ensure unique cluster names across workflow runs
           K8S_VERSION_NORMALIZED=$(echo "${{ matrix.k8s-version }}" | tr '.' '-')
-          CLUSTER_NAME="${{ needs.setup.outputs.channel-name }}-$K8S_VERSION_NORMALIZED-${{ matrix.distribution }}"
+          CLUSTER_NAME="${{ needs.setup.outputs.channel-name }}-$K8S_VERSION_NORMALIZED-${{ matrix.distribution }}-${{ github.run_number }}"
           
           CLUSTER_ID="${{ steps.set-cluster-outputs.outputs.cluster-id }}"
           
@@ -663,8 +667,9 @@ jobs:
         shell: bash
         run: |
           # Normalize cluster name to match task expectations (replace dots with dashes)
+          # Include run number to ensure unique cluster names across workflow runs
           K8S_VERSION_NORMALIZED=$(echo "${{ matrix.k8s-version }}" | tr '.' '-')
-          CLUSTER_NAME="${{ needs.setup.outputs.channel-name }}-$K8S_VERSION_NORMALIZED-${{ matrix.distribution }}"
+          CLUSTER_NAME="${{ needs.setup.outputs.channel-name }}-$K8S_VERSION_NORMALIZED-${{ matrix.distribution }}-${{ github.run_number }}"
           
           echo "Getting kubeconfig for cluster: $CLUSTER_NAME"
           
@@ -685,8 +690,9 @@ jobs:
         working-directory: ${{ env.APP_DIR }}
         run: |
           # Normalize cluster name to match task expectations (replace dots with dashes)
+          # Include run number to ensure unique cluster names across workflow runs
           K8S_VERSION_NORMALIZED=$(echo "${{ matrix.k8s-version }}" | tr '.' '-')
-          CLUSTER_NAME="${{ needs.setup.outputs.channel-name }}-$K8S_VERSION_NORMALIZED-${{ matrix.distribution }}"
+          CLUSTER_NAME="${{ needs.setup.outputs.channel-name }}-$K8S_VERSION_NORMALIZED-${{ matrix.distribution }}-${{ github.run_number }}"
           task customer-helm-install \
             CUSTOMER_NAME="${{ needs.setup.outputs.customer-name }}" \
             CLUSTER_NAME="$CLUSTER_NAME" \