workflow-pr: Allow to ignore reviewers in manual mode

Eg. don't insist on maintainers who got removed on purpose from the pull
request.

common/pr.go

@@ -352,7 +352,7 @@ func (rs *PRSet) FindMissingAndExtraReviewers(maintainers MaintainershipData, id
 			noReviewPkgPRCreators = pkgMaintainers
 		}
 
-		LogDebug("packakge maintainers:", Maintainers)
+		LogDebug("package maintainers:", Maintainers)
 
 		missing = slices.Concat(configReviewers.Pkg, configReviewers.PkgOptional)
 		if slices.Contains(noReviewPkgPRCreators, pr.PR.User.UserName) || pr.Reviews.IsReviewedByOneOf(Maintainers...) {
@@ -502,10 +502,14 @@ func (rs *PRSet) IsApproved(gitea GiteaPRChecker, maintainers MaintainershipData
 
 		if !is_manually_reviewed_ok {
 			LogInfo("manual merge not ok")
-			return false
 		}
+
+		// we only check existing reviewers here. buildops tean want to be able
+		// to remove reviewiers to ignore them.
+		return is_manually_reviewed_ok
 	}
 
+	// No manual review
 	for _, pr := range rs.PRs {
 		var reviewers []string
 		var pkg string