Fix for docker build.

Author: Jaben

.github/workflows/build.yml

@@ -18,7 +18,7 @@ env:
   CONFIGURATION: Release
 
 jobs:
-  build:
+  build-windows:
     name: Build Papercut SMTP
     runs-on: windows-2022
     permissions:
@@ -85,19 +85,42 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
+  build-docker:
+    name: Build and Push Docker Image
+    runs-on: ubuntu-latest
+    needs: build-windows
+    if: (github.ref == 'refs/heads/master' || github.ref == 'refs/heads/develop') && github.event_name == 'push'
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Install GitVersion
+        uses: gittools/actions/gitversion/setup@v4.1.0
+        with:
+          versionSpec: '6.x'
+
+      - name: Determine Version
+        id: gitversion
+        uses: gittools/actions/gitversion/execute@v4.1.0
+        with:
+          configFilePath: GitVersion.yml
+
       - name: Set up Docker Buildx
-        if: (github.ref == 'refs/heads/master' || github.ref == 'refs/heads/develop') && github.event_name == 'push'
         uses: docker/setup-buildx-action@v3
 
       - name: Log in to Docker Hub
-        if: (github.ref == 'refs/heads/master' || github.ref == 'refs/heads/develop') && github.event_name == 'push'
         uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
 
       - name: Extract Docker metadata
-        if: (github.ref == 'refs/heads/master' || github.ref == 'refs/heads/develop') && github.event_name == 'push'
         id: meta
         uses: docker/metadata-action@v5
         with:
@@ -110,7 +133,6 @@ jobs:
             type=semver,pattern={{major}}.{{minor}},value=${{ steps.gitversion.outputs.semVer }},enable=${{ github.ref == 'refs/heads/master' }}
 
       - name: Build and push Docker image
-        if: (github.ref == 'refs/heads/master' || github.ref == 'refs/heads/develop') && github.event_name == 'push'
         uses: docker/build-push-action@v5
         with:
           context: .