- introduce new flag allowing to fetch reviewers who approved PRs

- add new testcase which verifies approvers being included
  - adjust config for some test cases to verify reviewers not being pulled if disabled

src/releaseNotesBuilder.ts

@@ -15,9 +15,10 @@ export class ReleaseNotesBuilder {
     private repo: string | null,
     private fromTag: string | null,
     private toTag: string | null,
-    private includeOpen: boolean,
+    private includeOpen: boolean = false,
     private failOnError: boolean,
     private ignorePreReleases: boolean,
+    private fetchReviewers: boolean = false,
     private commitMode: boolean,
     private configuration: Configuration
   ) {}
@@ -91,6 +92,7 @@ export class ReleaseNotesBuilder {
       toTag: this.toTag,
       includeOpen: this.includeOpen,
       failOnError: this.failOnError,
+      fetchReviewers: this.fetchReviewers,
       commitMode: this.commitMode,
       configuration: this.configuration
     }