implemented the GitHub calls for the repository

gpt-schema.yml

@@ -183,7 +183,7 @@ paths:
                           properties:
                             name:
                               type: string
-                              email:
+                            email:
                               type: string
                               date:
                               type: string
@@ -195,8 +195,8 @@ paths:
                           properties:
                             sha:
                               type: string
-                              url:
-                                type: string
+                            url:
+                              type: string
                         url:
                           type: string
                         comment_count:
@@ -298,5 +298,56 @@ paths:
                             type: string
         '404':
           description: Repository not found
+
+  /repos/{owner}/{repo}/branches:
+    get:
+      operationId: listBranches
+      summary: List branches in a repository
+      description: Retrieve a list of branches in a repository.
+      parameters:
+        - name: owner
+          in: path
+          required: true
+          schema:
+            type: string
+          description: The owner of the repository.
+        - name: repo
+          in: path
+          required: true
+          schema:
+            type: string
+          description: The name of the repository.
+        - name: protected
+          in: query
+          schema:
+            type: boolean
+          description: Set to true to only return protected branches.
+      responses:
+        '200':
+          description: Successful response
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  type: object
+                  properties:
+                    name:
+                      type: string
+                      description: The name of the branch.
+                    commit:
+                      type: object
+                      properties:
+                        sha:
+                          type: string
+                          description: SHA of the commit.
+                        url:
+                          type: string
+                          description: URL of the commit.
+                    protected:
+                      type: boolean
+                      description: Indicates if the branch is protected.
+        '404':
+          description: Repository not found
 components:
   schemas: {}