for test only

Signed-off-by: chensuyue <[email protected]>

.github/workflows/_get-test-matrix.yml

@@ -38,7 +38,7 @@ jobs:
           set -xe
           if [ "${{ github.event_name }}" == "pull_request" ] || [ "${{ github.event_name }}" == "pull_request_target" ]; then
             LATEST_COMMIT_SHA=$(curl -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" \
-            "https://api.github.com/repos/opea-project/GenAIComps/commits?sha=${GITHUB_REF#refs/heads/}" | jq -r '.[0].sha')
+            "https://api.github.com/repos/opea-project/GenAIComps/commits?sha=${{ github.event.pull_request.base.ref }}" | jq -r '.[0].sha')
             echo "Latest commit SHA is $LATEST_COMMIT_SHA"
             base_commit=$LATEST_COMMIT_SHA
           else

.github/workflows/pr-examples-test.yml

@@ -4,7 +4,7 @@
 name: Example-test
 
 on:
-  pull_request_target:
+  pull_request:
     branches: [main]
     types: [opened, reopened, ready_for_review, synchronize] # added `ready_for_review` since draft is skipped
     paths: