ci: create test build and release build actions

.github/workflows/release-build-runner.yml

@@ -0,0 +1,32 @@
+name: Release
+
+on:
+  push:
+    branches:
+      - "main"
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  packages: write
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+        
+      - name: Log in to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      
+      - name: Build and push runner image
+        uses: docker/build-push-action@v6
+        with:
+          push: true
+          tags: ghcr.io/r15-software-dev/scholarships-runner:latest