Simplify Docker build workflow

Remove duplicate webhook steps and comment out unused hooks. Normalize
step syntax and adjust branch quoting for consistency.

.github/workflows/build_docker_image.yml

@@ -3,18 +3,16 @@ name: Build docker image
 on:
   push:
     branches:
-      - 'main'
+      - "main"
 
 jobs:
   Build-Docker-Image:
     runs-on: ubuntu-latest
     steps:
-      -
-        name: Checkout
+      - name: Checkout
         uses: actions/checkout@v4
 
-      -
-        name: Set up Docker Buildx
+      - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
       - id: repository_name
@@ -22,16 +20,14 @@ jobs:
         with:
           string: ${{ github.repository }}
 
-      -
-        name: Login to ghcr.io
+      - name: Login to ghcr.io
         uses: docker/login-action@v3
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      -
-        name: Build and push
+      - name: Build and push
         id: docker_build
         uses: docker/build-push-action@v6
         env:
@@ -43,32 +39,7 @@ jobs:
           context: .
           file: ./docker/build.dockerfile
 
-      -
-        name: Invoke deployment hook (game_list)
+      - name: Invoke deployment hook
         uses: joelwmale/webhook-action@master
         with:
           url: ${{ secrets.WEBHOOK_URL }}
-
-      -
-        name: Invoke deployment hook (twitch_webhook)
-        uses: joelwmale/webhook-action@master
-        with:
-          url: ${{ secrets.WEBHOOK_URL_2 }}
-
-      -
-        name: Invoke deployment hook (temporal_worker)
-        uses: joelwmale/webhook-action@master
-        with:
-          url: ${{ secrets.WEBHOOK_URL_3 }}
-
-      # -
-      #   name: Invoke deployment hook (stream_notifications)
-      #   uses: joelwmale/webhook-action@master
-      #   with:
-      #     url: ${{ secrets.WEBHOOK_URL_4 }}
-
-      # -
-      #   name: Invoke deployment hook (web_app)
-      #   uses: joelwmale/webhook-action@master
-      #   with:
-      #     url: ${{ secrets.WEBHOOK_URL_5 }}