Rename healthchecks.sh to check.sh

The logic for the rename is that the name
"healthchecks" may imply that all the script
is doing is querying the /healthcheck endpoint
on each service.

While this used to be the case, the script will
soon be used for more sophisticated checks, such
as the analytics pipeline acceptance tests,
hence the generalized name for the script.

Author: kdmccormick

Makefile

@@ -362,10 +362,10 @@ studio-static: ## Rebuild static assets for the Studio container
 static: | credentials-static discovery-static ecommerce-static lms-static studio-static ## Rebuild static assets for all service containers
 
 healthchecks: ## Run a curl against all services' healthcheck endpoints to make sure they are up. This will eventually be parameterized
-	$(WINPTY) bash ./healthchecks.sh all
+	$(WINPTY) bash ./check.sh all
 
 healthchecks.%:
-	$(WINPTY) bash ./healthchecks.sh $*
+	$(WINPTY) bash ./check.sh $*
 
 e2e-tests: ## Run the end-to-end tests against the service containers
 	docker run -t --network=devstack_default -v ${DEVSTACK_WORKSPACE}/edx-e2e-tests:/edx-e2e-tests -v ${DEVSTACK_WORKSPACE}/edx-platform:/edx-e2e-tests/lib/edx-platform --env-file ${DEVSTACK_WORKSPACE}/edx-e2e-tests/devstack_env edxops/e2e env TERM=$(TERM)  bash -c 'paver e2e_test --exclude="whitelabel\|enterprise"'