Maintenance: Create github actions for v3 branch

[leandrodamascena]

Why is this needed?

Our automation is configured to work when we open/merge pull requests in the develop branch. The v3 branch is the default branch for working on Powertools v3 issues, so, we need to add actions in this branch.

Which area does this relate to?

Automation

Solution

No response

Acknowledgment

• This request meets Powertools for AWS Lambda (Python) Tenets
• Should this be considered in other Powertools for AWS Lambda languages? i.e. Java, TypeScript, and .NET

[leandrodamascena]

Closed via #4232