Use PR title and description for commit message

[kou]

Is your feature request related to a problem or challenge? Please describe what you are trying to do.

We use the "Squash and merge" button for merging a PR. The default commit message is:

• The commit message of the first commit if only one commit exists in the PR
• The commit title of the first commit as a title and list of commit titles of all commits if multiple commits exist in the PR

We have our PR template and it has very useful information.

In general, the PR title and description have more useful information than the default commit message described above. How about using the PR title and description as the default commit message?

FYI: Other apache/arrow* repositories does this.

Describe the solution you'd like

diff --git a/.asf.yaml b/.asf.yaml
index 53c5c3015..4ff99cf02 100644
--- a/.asf.yaml
+++ b/.asf.yaml
@@ -35,6 +35,7 @@ github:
     squash: true
     merge: false
     rebase: false
+    squash_commit_message: PR_TITLE_AND_DESC
   features:
     issues: true
     discussions: true

See also: https://github.com/apache/infrastructure-asfyaml/blob/main/README.md#merge-buttons

Describe alternatives you've considered

None.

Additional context

None.

[alamb]

Sounds like a good thing to try to me