Use the new Stem repository on Gitlab

Signed-off-by: David Goulet <dgoulet@torproject.org>

.gitlab-ci.yml

@@ -101,7 +101,7 @@ variables:
     - if [ "$CC" = clang ]; then apt-get install clang; fi
     - if [ "$NSS" = yes ]; then apt-get install libnss3 libnss3-dev; fi
     # TODO: This next line should not be debian-only.
-    - if [ "$STEM" = yes ]; then git clone --depth 1 https://git.torproject.org/stem.git ; export STEM_PATH="$(pwd)/stem"; fi
+    - if [ "$STEM" = yes ]; then git clone --depth 1 https://gitlab.torproject.org/tpo/network-health/stem.git ; export STEM_PATH="$(pwd)/stem"; fi
     # TODO: This next line should not be debian-only.
     - if [ "$CHUTNEY" = yes ]; then git clone --depth 1 https://git.torproject.org/chutney.git ;  export CHUTNEY_PATH="$(pwd)/chutney"; fi
     - if [ "$TRACING" = yes ]; then apt install liblttng-ust-dev; fi

Makefile.am

@@ -475,7 +475,7 @@ test-network-results:
 need-stem-path:
 	@if test ! -d "$$STEM_SOURCE_DIR"; then \
 		echo '$$STEM_SOURCE_DIR was not set.'; echo; \
-		echo "To run these tests, git clone https://git.torproject.org/stem.git/ ; export STEM_SOURCE_DIR=\`pwd\`/stem"; \
+		echo "To run these tests, git clone https://gitlab.torproject.org/tpo/network-health/stem ; export STEM_SOURCE_DIR=\`pwd\`/stem"; \
 		exit 1; \
 	fi
 

doc/HACKING/WritingTests.md

@@ -465,7 +465,7 @@ Let's assume you actually want to write a test for a previously untested
 controller feature. I'm picking the `exit-policy/*` GETINFO queries. Since
 these are a controller feature that we want to write an integration test for,
 the right file to modify is
-`https://gitweb.torproject.org/stem.git/tree/test/integ/control/controller.py`.
+`https://gitlab.torproject.org/tpo/network-health/stem/-/blob/master/test/integ/control/controller.py`.
 
 First off we notice that there is an integration test called
 `test_get_exit_policy()` that's already written. This exercises the interaction