add osd plugins version bump back to main branch (#5516)

Signed-off-by: Yulong Ruan <[email protected]>

Author: ruanyl

.github/workflows/osd-increment-plugin-versions.yml

@@ -43,6 +43,7 @@ jobs:
           - {repo: opensearch-dashboards-functional-test}
           - {repo: query-insights-dashboards}
         branch:
+          - 'main'
           - '3.0'
           - '2.19'
     steps: