chore: fix log (#220)

<!-- This is an auto-generated comment: release notes by openai -->
### Summary by OpenAI

## Release Notes

- New Feature: Log commit ID from which the review will be done.

> "A new feature has arrived,
> Commit ID logging, oh my!
> Code quality improved,
> Bugs and errors removed,
> Let's celebrate with a joyful cry!"
<!-- end of auto-generated comment: release notes by openai -->

Author: harjotgill

dist/index.js

@@ -93,9 +93,10 @@ export const codeReview = async (
       `Will review from the base commit: ${context.payload.pull_request.base.sha}`
     )
     highest_reviewed_commit_id = context.payload.pull_request.base.sha
+  } else {
+    core.info(`Will review from commit: ${highest_reviewed_commit_id}`)
   }
 
-  core.info(`Will review from commit: ${highest_reviewed_commit_id}`)
   // get the list of files changed between the highest reviewed commit
   // and the latest (head) commit
   // use octokit.pulls.compareCommits to get the list of files changed