feat(release_setup): set version for PRs (#14)

Author: ReenigneArcher

actions/release_setup/main.py

@@ -229,6 +229,7 @@ def get_push_event_details() -> dict:
     push_event_details['release_commit'] = github_sha
 
     if is_pull_request:
+        push_event_details['release_version'] = f'0.0.{github_event["number"]}'
         return push_event_details
 
     # this is a push event

tests/release_setup/data/dummy_github_pr_event.json

@@ -7,6 +7,7 @@
       "timestamp": "2024-05-13T20:55:03Z"
     }
   ],
+  "number": 123,
   "pull_request": {
     "_fake_key": "this key isn't used, but needs to be here so `pull_request` doesn't evaluate to `False`"
   }