install test deps

Author: elprans

.github/workflows/tests.yml

@@ -90,7 +90,8 @@ jobs:
         if [ "${LOOP_IMPL}" = "uvloop" ]; then
             export USE_UVLOOP=1
         fi
-        uv run --with "geltest@git+https://github.com/geldata/geltest.git@main" \
+        uv run --verbose --extra=test \
+            --with "geltest@git+https://github.com/geldata/geltest.git@main" \
             geltest
 
   # This job exists solely to act as the test job aggregate to be