fix(release_setup)!: use github sha for PRs (#32)

Author: ReenigneArcher

actions/release_setup/README.md

@@ -30,7 +30,7 @@ The action does the following:
 |--------------------------------|----------------------------------------------------------------------------|
 | publish_release                | Whether or not to publish a release                                        |
 | release_body                   | The body for the release                                                   |
-| release_commit                 | The commit hash for the release                                            |
+| release_commit                 | The commit hash for the release. (i.e. `${GITHUB_SHA}`                     |
 | release_generate_release_notes | Whether or not to generate release notes. True if `release_body` is blank. |
 | release_tag                    | The tag for the release (i.e. `release_version` with prefix)               |
 | release_version                | The version for the release (i.e. `yyyy.mmdd.hhmmss`)                      |

actions/release_setup/main.py

@@ -220,13 +220,7 @@ def get_push_event_details() -> dict:
 
     is_pull_request = True if github_event.get("pull_request") else False
 
-    try:
-        # set sha to the head sha of the pull request
-        github_sha = github_event["pull_request"]["head"]["sha"]
-    except KeyError:
-        # not a pull request event
-        github_sha = os.environ["GITHUB_SHA"]
-    push_event_details['release_commit'] = github_sha
+    push_event_details['release_commit'] = os.environ["GITHUB_SHA"]
 
     if is_pull_request:
         push_event_details['release_version'] = f'0.0.{github_event["number"]}'