GitlabManager => Fix error on file creation or update

ExpressAPI/src/managers/GitlabManager.ts

@@ -164,7 +164,7 @@ class GitlabManager extends SharedGitlabManager {
     }
 
     private createUpdateFile(create: boolean, repoId: number, filePath: string, fileBase64: string, commitMessage: string, branch: string = 'main', authorName: string = 'Dojo', authorMail: string | undefined = undefined): Promise<RepositoryFileSchema> {
-        const gitFunction = create ? this.api.RepositoryFiles.create : this.api.RepositoryFiles.edit;
+        const gitFunction = create ? this.api.RepositoryFiles.create.bind(this.api) : this.api.RepositoryFiles.edit.bind(this.api);
 
         return gitFunction(repoId, filePath, branch, fileBase64, commitMessage, {
             encoding   : 'base64',