Use nginx-bot to checkout & commit renovate PR's (#8773)

Author: pdabelf5

.github/workflows/renovate-build.yml

@@ -45,10 +45,26 @@ jobs:
       contents: write
     if: ${{ needs.check.outputs.generate == 'true' }}
     steps:
+      - name: Azure login
+        uses: azure/login@a457da9ea143d694b1b9c7c869ebb04ebe844ef5 # v2.3.0
+        with:
+          client-id: ${{ secrets.AZURE_COMMON_VAULT_CLIENT_ID }}
+          tenant-id: ${{ secrets.AZURE_COMMON_VAULT_TENANT_ID }}
+          subscription-id: ${{ secrets.AZURE_COMMON_VAULT_SUBSCRIPTION_ID }}
+
+      - name: Setup secrets
+        id: secrets
+        run: |
+          echo "Setting secrets for job"
+          NGINX_PAT=$(az keyvault secret show --name nginx-bot-pat --vault-name ${{ secrets.COMMON_KEYVAULT_NAME }} --query value -o tsv)
+          echo "::add-mask::$NGINX_PAT"
+          echo "NGINX_PAT=$NGINX_PAT" >> $GITHUB_OUTPUT
+
       - name: Checkout repository
         uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:
           ref: ${{ github.head_ref }}
+          token: ${{ steps.secrets.outputs.NGINX_PAT }}
 
       - name: Configure GOPROXY
         id: goproxy