CI: PR must fail when generated code is not committed

[Yang-33]

When performing code generation, not committing the generated code can lead to unexpected code being merged into the master branch. The code generation results on CI should match the diff in the PR.

probably coping them works

• PR must fail when generated code is not committed line-bot-sdk-nodejs#1046
• Allow renovate PR to have un committed changes line-bot-sdk-nodejs#1066