Fix Workshop Service Test Environment Setup (#331)

* Fix workshop and identity test setup by waiting for databases

Added --wait flag to docker compose up command to ensure PostgreSQL
and MongoDB are fully healthy before running tests. This prevents test
failures due to database connection issues when services aren't ready.

Author: piyushroshan

.github/workflows/pr-build.yml

@@ -217,7 +217,7 @@ jobs:
           go-version: '1.23'
 
       - name: Start the database
-        run: docker compose -f services/docker-database.yml up -d
+        run: docker compose -f services/docker-database.yml up -d --wait
 
       - name: Run identity tests
         run: |
@@ -241,6 +241,11 @@ jobs:
           working-directory: services/community
 
 
+      - name: Install system dependencies for workshop
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libcairo2-dev pkg-config python3-dev
+
       - name: Run workshop tests
         run: |
           cd services/workshop