invoke module

Makefile

@@ -335,15 +335,15 @@ validate-runtime-images: # Validates delivered runtime-images meet minimum crite
 					echo WARNING: Image $$image requires at Python 3.8 or greater for latest generic component dependency installation; \
 					docker run -v $$(pwd)/etc/generic:/opt/elyra/ --rm $$image python3 -m pip install -r /opt/elyra/requirements-elyra-py37.txt && \
 								   curl https://raw.githubusercontent.com/nteract/papermill/main/papermill/tests/notebooks/simple_execute.ipynb --output simple_execute.ipynb && \
-								   papermill simple_execute.ipynb output.ipynb > /dev/null ; \
+								   python3 -m papermill simple_execute.ipynb output.ipynb > /dev/null ; \
 					if [ $$? -ne 0 ]; then \
 						echo ERROR: Image $$image did not meet python requirements criteria in requirements-elyra-py37.txt ; \
 						fail=1; \
 					fi; \
 				elif [[ $$IMAGE_PYTHON3_MINOR_VERSION -ge 8 ]]; then \
 					docker run -v $$(pwd)/etc/generic:/opt/elyra/ --rm $$image python3 -m pip install -r /opt/elyra/requirements-elyra.txt && \
 								   curl https://raw.githubusercontent.com/nteract/papermill/main/papermill/tests/notebooks/simple_execute.ipynb --output simple_execute.ipynb && \
-								   papermill simple_execute.ipynb output.ipynb > /dev/null ; \
+								   python3 -m papermill simple_execute.ipynb output.ipynb > /dev/null ; \
 					if [ $$? -ne 0 ]; then \
 						echo ERROR: Image $$image did not meet python requirements criteria in requirements-elyra.txt ; \
 						fail=1; \