ci: change trigger

Author: KD-7

.github/workflows/clean_deployments.yml

@@ -5,7 +5,14 @@
 name: 🧼 Clean up environment deployments
 on:
   workflow_dispatch:
-  workflow_call:
+
+  # To share the secrets between jobs for our Python Publish Action, we need to use
+  # an environment which creates multiple deployments.
+  # This action cleans up the GitHub PR when the deployments are
+  # no longer needed.
+  # Due to API limitations, we cant call this action from the Python Publish Action,
+  # so we need to call this on each PR.
+  pull_request:
 
 jobs:
   cleanup:

.github/workflows/python_publish.yml

@@ -39,12 +39,6 @@ jobs:
   typo_check:
     uses: ./.github/workflows/typo.yml
 
-  # To share the secrets between jobs, we need to use an environment which creates
-  # multiple deployments. This action cleans up the GitHub PR when the deployments are
-  # no longer needed.
-  clean_deployments:
-    uses: ./.github/workflows/clean_deployments.yml
-
   deploy_to_pypi:
     runs-on: ubuntu-latest
     needs: [unit_tests, static_analysis, format_check, typo_check]