GitlabManager => Add getRepositoryLastCommit function

ExpressAPI/src/managers/GitlabManager.ts

-import axios             from 'axios';
-import Config            from '../config/Config';
-import GitlabRepository  from '../shared/types/Gitlab/GitlabRepository';
-import GitlabAccessLevel from '../shared/types/Gitlab/GitlabAccessLevel';
-import GitlabMember      from '../shared/types/Gitlab/GitlabMember';
-import { StatusCodes }   from 'http-status-codes';
-import GitlabVisibility  from '../shared/types/Gitlab/GitlabVisibility';
-import GitlabUser        from '../shared/types/Gitlab/GitlabUser';
-import GitlabTreeFile    from '../shared/types/Gitlab/GitlabTreeFile';
-import parseLinkHeader   from 'parse-link-header';
-import GitlabFile        from '../shared/types/Gitlab/GitlabFile';
-import express           from 'express';
-import GitlabRoute       from '../shared/types/Gitlab/GitlabRoute';
-import SharedConfig      from '../shared/config/SharedConfig';
-import GitlabProfile     from '../shared/types/Gitlab/GitlabProfile';
-import GitlabRelease     from '../shared/types/Gitlab/GitlabRelease';
+import axios                    from 'axios';
+import Config                   from '../config/Config';
+import GitlabRepository         from '../shared/types/Gitlab/GitlabRepository';
+import GitlabAccessLevel        from '../shared/types/Gitlab/GitlabAccessLevel';
+import GitlabMember             from '../shared/types/Gitlab/GitlabMember';
+import { StatusCodes }          from 'http-status-codes';
+import GitlabVisibility         from '../shared/types/Gitlab/GitlabVisibility';
+import GitlabUser               from '../shared/types/Gitlab/GitlabUser';
+import GitlabTreeFile           from '../shared/types/Gitlab/GitlabTreeFile';
+import parseLinkHeader          from 'parse-link-header';
+import GitlabFile               from '../shared/types/Gitlab/GitlabFile';
+import express                  from 'express';
+import GitlabRoute              from '../shared/types/Gitlab/GitlabRoute';
+import SharedConfig             from '../shared/config/SharedConfig';
+import GitlabProfile            from '../shared/types/Gitlab/GitlabProfile';
+import GitlabRelease            from '../shared/types/Gitlab/GitlabRelease';
+import { CommitSchema, Gitlab } from '@gitbeaker/rest';
+import logger                   from '../shared/logging/WinstonLogger';
 
 
 class GitlabManager {
+    readonly api = new Gitlab({
+                                  host : SharedConfig.gitlab.URL,
+                                  token: Config.gitlab.account.token
+                              });
+
     private getApiUrl(route: GitlabRoute): string {
         return `${ SharedConfig.gitlab.apiURL }${ route }`;
     }
@@ -75,6 +82,21 @@ class GitlabManager {
         return response.data;
     }
 
+    async getRepositoryLastCommit(repoId: number, branch: string = 'main'): Promise<CommitSchema | undefined> {
+        try {
+            const commits = await this.api.Commits.all(repoId, {
+                refName : branch,
+                maxPages: 1,
+                perPage : 1
+            });
+
+            return commits.length > 0 ? commits[0] : undefined;
+        } catch ( e ) {
+            logger.error(e);
+            return undefined;
+        }
+    }
+
     async createRepository(name: string, description: string, visibility: string, initializeWithReadme: boolean, namespace: number, sharedRunnersEnabled: boolean, wikiEnabled: boolean, import_url: string): Promise<GitlabRepository> {
         const response = await axios.post<GitlabRepository>(this.getApiUrl(GitlabRoute.REPOSITORY_CREATE), {
             name                  : name,