feat: remove insecure & unnecessary workflow.

.github/workflows/pr-docker-build.yml

@@ -1,38 +0,0 @@
-name: Build and Publish PR Docker Image
-
-on:
-  pull_request_target:
-    types: [opened, synchronize]
-
-permissions: write-all
-
-jobs:
-  build-and-publish:
-    runs-on: ubuntu-latest
-
-    environment: 
-      name: build-pr
-
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v6
-        with:
-          fetch-depth: 0
-          ref: ${{ github.event.pull_request.head.sha }}
-
-      - name: Log in to GitHub Container Registry
-        uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.actor }}
-          password: ${{ github.token }}
-
-      - name: Set image tag
-        id: vars
-        run: echo "IMAGE_TAG=ghcr.io/gitroomhq/postiz-app-pr:${{ github.event.pull_request.number }}" >> $GITHUB_ENV
-
-      - name: Build Docker image from Dockerfile.dev
-        run: docker build -f Dockerfile.dev -t $IMAGE_TAG .
-
-      - name: Push Docker image to GHCR
-        run: docker push $IMAGE_TAG