added GRM close action

src/tasks/gitreleasemanager/close.ts

@@ -0,0 +1,4 @@
+import "reflect-metadata";
+import { close } from "./main";
+
+close();

src/tasks/gitreleasemanager/main.ts

@@ -53,4 +53,19 @@ export async function discard() {
     } catch (error) {
         buildAgent.setFailed(error.message, true);
     }
+}
+
+export async function close() {
+    try {
+
+        gitReleaseManagerTool.disableTelemetry();
+
+        const settings = Settings.getCloseSettings(buildAgent);
+
+        await gitReleaseManagerTool.close(settings);
+
+        buildAgent.setSucceeded("GitVersionManager closed release successfully", true);
+    } catch (error) {
+        buildAgent.setFailed(error.message, true);
+    }
 }