ci: create test github action

.github/workflows/test-build.yml

@@ -0,0 +1,31 @@
+on:
+  pull_request:
+    branches:
+      - main
+      - develop
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  packages: write
+
+jobs:
+  build:
+    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