set git submodule strategy to recursive in the ci for pycapo pex building

.gitlab-ci.yml

@@ -68,6 +68,10 @@ push base image:
 # Cache
 build cache:
     stage: cache-build
+    variables:
+        # For building pycapo pex
+        # Enable Git submodules https://docs.gitlab.com/ee/ci/git_submodules.html#use-git-submodules-in-cicd-jobs
+        GIT_SUBMODULE_STRATEGY: recursive
     script:
         - docker build -t cache:${CI_COMMIT_SHORT_SHA} -f Dockerfile.cache .
 

.gitmodules

 [submodule "apps/cli/executables/pexable/pycapo"]
 	path = apps/cli/executables/pexable/pycapo
-	url = gitlab@gitlab.nrao.edu:ssa/pycapo.git
+	url = https://gitlab.nrao.edu/ssa/pycapo.git