Automate the release process with Release Please

[beeme1mr]

### Tasks
- [x] Update repo settings to only allow squash merges using the PR title
- [ ] https://github.com/open-feature/kotlin-sdk/issues/15
- [x] Add Release Please GitHub action and initial configuration
- [x] Update the release GitHub action to only run after a Release Please release PR is merged
- [ ] Document the release process

[vahidlazio]

@toddbaert @beeme1mr we need admin access to the repos in order to add github actions secrets etc. we should probably be added here i guess?

[toddbaert]

@toddbaert @beeme1mr we need admin access to the repos in order to add github actions secrets etc. we should probably be added here i guess?

None of the "admin" groups are populated per repo. To keep secrets minimally shared, this is restricted to the org admins (the TC and GC). If you let us know what secrets/app you need, we'll be happy to set them up for you.

[beeme1mr]

Sorry, I missed this notification. We can probably grant temporary admin access while the repo is being bootstrapped. I'll look into it tomorrow.

[vahidlazio]

@toddbaert @beeme1mr thanks both. we need at least github token in the secrets to integrate the "release please" action that you use in other repos.

[beeme1mr]

Hey @vahidlazio, I've granted you admin permission while you set up the repo. You should be able to access the repo settings now.

By the way, tou shouldn't need to set the GITHUB_TOKEN. That's defined by GitHub automatically.

[vahidlazio]

@beeme1mr thanks for the permissions, it helped a lot for testing different scenarios for release please plugin. however i wanted to add more things to the releases and upload an aar file to the created release. i used upload_url from the output of the create_release step and it seems like it can't pick it up. I ended up removing it here since it's not critical thing to have in the releases but it would be nice if we could find out what's going on and why it fails.

[beeme1mr]

Hey @vahidlazio, I'm out of the office today but I'll look into it when I'm back.