Pri/Pub submodule updates for github actions

Version updated for MikasaEureka/pub-private-submodule-checkout to version v.1.1.

• This action is used across all versions by ? repositories.

Go to the GitHub Marketplace to find the latest changes.

Release notes

fix bug for situations like: submodule can’t automatically checkout to the newest branch new

• MikasaEureka
• GitHub Actions