Releasing the Jaeger Operator for Kubernetes

Generating the changelog

Get the OAUTH_TOKEN from Github, select repo:status scope.
Run OAUTH_TOKEN=... make changelog
Remove the commits that are not relevant to users, like:
- CI or testing-specific commits (e2e, unit test, ...)
- bug fixes for problems that are not part of a release yet
- version bumps for internal dependencies

Steps to release a new version of the Jaeger Operator:

Change the versions.txt so that it lists the target version of the Jaeger (if it is required). Don't touch the operator version: it will be changed automatically in the next step.
Confirm that MIN_KUBERNETES_VERSION and MIN_OPENSHIFT_VERSION in the Makefile are still up-to-date, and update them if required.
Run OPERATOR_VERSION=1.30.0 make prepare-release, using the operator version that will be released.
Run the E2E tests in OpenShift as described in the CONTRIBUTING.md file. The tests will be executed automatically in Kubernetes by the GitHub Actions CI later.
Prepare a changelog since last release.
Update the release manager schedule.
Commit the changes and create a pull request:
```
git commit -sm "Preparing release v1.30.0"
```
Once the changes above are merged and available in main tag it with the desired version, prefixed with v, eg. v1.30.0
```
git checkout main
git tag v1.30.0
git push git@github.com:jaegertracing/jaeger-operator.git v1.30.0
```
The GitHub Workflow will take it from here, creating a GitHub release and publishing the images
After the release, PRs needs to be created against the Operator Hub Community Operators repositories:
- One for the upstream-community-operators, used by OLM on Kubernetes.
- One for the community-operators used by OpenShift.

This can be done with the following steps:

Update main git pull git@github.com:jaegertracing/jaeger-operator.git main
Clone both repositories upstream-community-operators and community-operators
Run make operatorhub
- If you have gh installed and configured, it will open the necessary PRs for you automatically.
- If you don't have it, the branches will be pushed to origin and you should be able to open the PR from there

After the PRs have been made it must be ensured that:

The operator should be released within a week after the Jaeger release.