Added postgres user and db creation to workflow

.gitea/workflows/compile.yml

@@ -28,6 +28,11 @@ jobs:
           apt-get update
           apt-get install -y ruby-full libsodium-dev libpq-dev
           gem install bundler
+        
+      - name: Create PostgreSQL database
+        run: |
+          -u postgres createuser -s postgres
+          createdb fgbot_db
 
       - name: Install dependencies
         run: bundle install