try without createdb
diff --git a/.github/workflows/c-cpp.yml b/.github/workflows/c-cpp.yml
index b2b6e0f..a51057f 100644
--- a/.github/workflows/c-cpp.yml
+++ b/.github/workflows/c-cpp.yml
@@ -29,7 +29,5 @@
       run: |
         sudo systemctl start postgresql.service
         pg_isready
-    - name: create test database
-      run: sudo createdb test
     - name: run tests
       run: make tests