chore: update deps, adapt lint, use json v2 (#1185)

- Raised go to 1.27
- Adopted json v2
- Sync lint config from gitea
- Fixed all issues

Co-authored-by: silverwind <me@silverwind.io>
Reviewed-on: https://gitea.com/gitea/runner/pulls/1185
Reviewed-by: bircni <bircni@icloud.com>
Co-authored-by: Renovate Bot <renovate-bot@gitea.com>

act/runner/runner.go

@@ -306,7 +306,7 @@ func handleFailure(plan *model.Plan) common.Executor {
 		for _, stage := range plan.Stages {
 			for _, run := range stage.Runs {
 				if run.Job().Result == "failure" && !run.Job().ContinueOnError {
-					return fmt.Errorf("Job '%s' failed", run.String())
+					return fmt.Errorf("job '%s' failed", run.String())
 				}
 			}
 		}