ci: Run on MR

This also adds the new dependencies

.gitea/workflows/test.yml

@@ -1,18 +1,21 @@
 name: Gol CI
 
+# Run on the merge of a pull request to the main branch
 on:
+  pull_request:
+    branches: [main]
   push:
-    branches: [ main ]
+    branches: [main]
 
 jobs:
   build:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - name: Install cmake
+      - name: Install dependencies
         run: |
           sudo apt-get update
-          sudo apt-get install -y cmake
+          sudo apt-get install -y cmake libxrandr-dev libxinerama-dev
       - name: Build and test
         run: |
           mkdir build