chore(workflow): remove unnecessary blank lines in docker.yml

Clean up the GitHub Actions workflow file by removing extra blank
lines. This improves readability and maintains a consistent style
throughout the file. The changes do not affect the functionality of
the workflow but make it easier to maintain and review.

Author: kzndotsh

.github/workflows/docker.yml

@@ -1,5 +1,4 @@
 name: Docker Build & Deploy
-
 on:
   push:
     branches:
@@ -11,18 +10,15 @@ on:
       - main
   workflow_dispatch:
   schedule:
-    - cron: '0 2 * * 0'  # Weekly cleanup on Sundays
-
+    - cron: 0 2 * * 0    # Weekly cleanup on Sundays
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: ${{ github.event_name == 'pull_request' }}
-
 env:
   REGISTRY: ghcr.io
   IMAGE_NAME: ${{ github.repository }}
   DOCKER_BUILD_SUMMARY: true
   DOCKER_BUILD_CHECKS_ANNOTATIONS: true
-
 jobs:
   validate:
     if: github.event_name == 'pull_request'
@@ -32,7 +28,6 @@ jobs:
     steps:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
-
       - name: Build for validation (Git context)
         uses: docker/build-push-action@v6.18.0
         timeout-minutes: 15
@@ -49,14 +44,12 @@ jobs:
           annotations: |
             org.opencontainers.image.title=Tux Discord Bot
             org.opencontainers.image.description=All Things Linux Discord Bot
-
       - name: Test container starts
         run: |
           docker run --rm --name tux-test \
             --entrypoint python \
             tux:pr-${{ github.event.number }} \
             -c "import tux; import sqlite3; import asyncio; print('🔍 Testing bot imports...'); print('✅ Main bot module imports successfully'); print('✅ SQLite available'); print('✅ Asyncio available'); conn = sqlite3.connect(':memory:'); conn.close(); print('✅ Database connectivity working'); print('🎉 All smoke tests passed!')"
-
   build:
     if: github.event_name != 'pull_request'
     runs-on: ubuntu-latest
@@ -74,25 +67,21 @@ jobs:
         uses: actions/checkout@v4
         with:
           fetch-depth: 0
-
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
         with:
           platforms: linux/amd64,linux/arm64
-
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
         with:
           driver-opts: |
             image=moby/buildkit:buildx-stable-1
-
       - name: Log in to Container Registry
         uses: docker/login-action@v3
         with:
           registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
-
       - name: Extract metadata
         id: meta
         uses: docker/metadata-action@v5
@@ -111,7 +100,6 @@ jobs:
             org.opencontainers.image.source=https://github.com/${{ github.repository }}
             org.opencontainers.image.revision=${{ github.sha }}
             org.opencontainers.image.licenses=MIT
-
       - name: Build and push
         id: build
         uses: docker/build-push-action@v6.18.0
@@ -135,14 +123,12 @@ jobs:
           annotations: ${{ steps.meta.outputs.annotations }}
           build-args: |
             BUILDKIT_INLINE_CACHE=1
-
       - name: Test pushed image
         run: |
           docker run --rm --name tux-prod-test \
             --entrypoint python \
             "$(echo '${{ steps.meta.outputs.tags }}' | head -1)" \
             -c "import tux; import sqlite3; import asyncio; print('🔍 Testing production image...'); print('✅ Bot imports successfully'); print('✅ Dependencies available'); conn = sqlite3.connect(':memory:'); conn.close(); print('✅ Database connectivity working'); print('🎉 Production image verified!')"
-
   security:
     if: github.event_name != 'pull_request'
     needs: build
@@ -154,32 +140,28 @@ jobs:
         uses: actions/checkout@v4
         with:
           fetch-depth: 0
-
       - name: Get first image tag
         id: first_tag
-        run: echo "image=$(echo '${{ needs.build.outputs.image }}' | head -1)" >> "$GITHUB_OUTPUT"
-
+        run: echo "image=$(echo '${{ needs.build.outputs.image }}' | head -1)" >>
+          "$GITHUB_OUTPUT"
       - name: Cache Trivy
         uses: actions/cache@v4
         with:
           path: ~/.cache/trivy
           key: cache-trivy-${{ github.run_id }}
           restore-keys: |
             cache-trivy-
-
       - name: Run Trivy vulnerability scanner
         uses: aquasecurity/trivy-action@master
         with:
           image-ref: ${{ steps.first_tag.outputs.image }}
           format: sarif
           output: trivy-results.sarif
           severity: CRITICAL,HIGH
-
       - name: Upload Trivy scan results
         uses: github/codeql-action/upload-sarif@v3
         with:
           sarif_file: trivy-results.sarif
-
       - name: Fail on critical vulnerabilities (excluding known issues)
         uses: aquasecurity/trivy-action@master
         with:
@@ -189,9 +171,9 @@ jobs:
           exit-code: '1'
           ignore-unfixed: true
           trivyignores: .trivyignore
-
   cleanup:
-    if: github.event_name != 'pull_request' && (github.event_name == 'schedule' || github.event_name == 'workflow_dispatch')
+    if: github.event_name != 'pull_request' && (github.event_name == 'schedule' ||
+      github.event_name == 'workflow_dispatch')
     runs-on: ubuntu-latest
     permissions:
       packages: write