Use environment variable for Azure app name

Author: sayedimac

.github/workflows/docker-publish-ghcr.yml

@@ -6,6 +6,7 @@ on:
 env:
   REGISTRY: ghcr.io
   IMAGE_NAME: sayedimac/docker-app
+  APPNAME: jaz204grid
 
 jobs:
   build:
@@ -63,6 +64,6 @@ jobs:
       - name: Deploy to Azure Web App
         uses: azure/webapps-deploy@v2
         with:
-          app-name: your-app-name
+          app-name: ${{ env.APPNAME }}
           publish-profile: ${{ secrets.AZURE_WEBAPP_PUBLISH_PROFILE }}
           images: ghcr.io/sayedimac/docker-app