Add github action for CI

[Madhu-1]

Add Github actions for the below operations

• GitHub Auto to auto assign a PR
• GitHub action for dependency-review
• GitHub action for mod check
• GitHub action for stale PR/issues

[Madhu-1]

Please feel free to add more if anything extra actions are required.

[obnoxxx]

@Madhu-1 wrote:

Add Github actions for the below operations

* [ ]  GitHub Auto to auto assign a PR

do you mean reacting to an /assign comment in an issue?

* [ ]  GitHub action for dependency-review

could you elaborate what this action should do?

* [ ]  GitHub action for mod check

* [ ]  GitHub action for stale PR/issues

[Madhu-1]

do you mean reacting to an /assign comment in an issue?

Yes that's correct

GitHub action for dependency-review

https://docs.github.com/en/code-security/supply-chain-security/understanding-your-software-supply-chain/about-dependency-review is a document link about the dependency-review one.