* ci(workflows): migrate to shared go-pr and go-release workflows
Replace the generic vet, staticcheck, govulncheck, gosec, test and release jobs with the shared go-pr and go-release workflows.
Keep the codegen-clean and audit jobs in ci.yml. Add an examples build job and the ci-success aggregator there.
Add autoupdate.yaml from the shared go-autoupdate workflow.
The release job now runs only on Go source changes and on manual dispatch.
The dry-run input and the Bot API note in the tag message no longer exist.
* ci(release): gate release on repo checks and export Bot API version
Move the codegen-clean, audit and examples jobs into the reusable checks.yml workflow. The ci.yml and release.yml workflows both call it.
The release job now needs the checks job. A failed or cancelled check blocks the release.
Add workflow-prepare.sh. It appends BOT_API_VERSION to GITHUB_ENV so the GoReleaser header shows the Bot API version.
The script does nothing when GITHUB_ENV is unset.
* ci(regen): name release.yml in the merge step comments
The release now runs from release.yml. The comments still named ci.yml as the workflow that cuts the release.
lukaszraczylo
