fix main branch ci

Author: ysawa0

.github/workflows/ci.yaml

@@ -65,7 +65,11 @@ jobs:
       - name: Run pre-commits
         run: |
           CUR_SHA=$(git log --pretty=tformat:"%H" -n1 .)
-          echo $CUR_SHA
-          echo ${{ env.BASE_COMMIT_ID }}
           git fetch
-          pre-commit run --from-ref origin/main --to-ref $CUR_SHA
+          if [[ $GITHUB_REF == 'refs/heads/main' ]]; then
+            LAST_SHA=$(git rev-parse HEAD^)
+            pre-commit run --from-ref $LAST_SHA --to-ref $CUR_SHA
+          else
+            pre-commit run --from-ref origin/main --to-ref $CUR_SHA
+          fi
+        # pre-commit run --from-ref origin/main --to-ref $CUR_SHA