CI: Limit clone depth to 1 for speed

check_if_integration_branch_is_up_to_date.py

@@ -28,7 +28,7 @@ def check_if_integration_branch_is_up_to_date(
         # Checkout manifest
         try:
             manifest_repo = Repo.clone_from(
-                clone_url.url, manifest_dir
+                clone_url.url, manifest_dir, depth=1
             )
         except GitCommandError as e:
             sys.exit("ERROR: could not clone manifest repository\n" + str(e))

update_submodule.py

@@ -51,7 +51,7 @@ def update_submodule(
 
         # Checkout project
         try:
-            repo = Repo.clone_from(clone_url.url, project_dir, branch=branch)
+            repo = Repo.clone_from(clone_url.url, project_dir, branch=branch, depth=1)
         except GitCommandError as e:
             sys.exit("ERROR: could not clone repository\n" + str(e))
         except IndexError: