Enhance deployment error in case of 403 (#305)

* Enhance deployment error in case of 403

* Update aka.ms link

---------

Co-authored-by: Akshay Kumar <[email protected]>

Author: kumaraksh1

lib/main.js

@@ -54,7 +54,14 @@ function main() {
         }
         catch (error) {
             isDeploymentSuccess = false;
-            core.setFailed("Deployment Failed with Error: " + error);
+            if (error.statusCode == 403) {
+                core.setFailed("The deployment to your web app failed with HTTP status code 403. \
+      Your web app may have networking features enabled which are blocking access (such as Private Endpoints).\
+      For more information, please follow https://aka.ms/forbidden-deployment-error");
+            }
+            else {
+                core.setFailed("Deployment Failed, " + error);
+            }
         }
         finally {
             if (deploymentProvider != null) {