No-op on GHES

src/save.ts

@@ -6,6 +6,11 @@ import * as utils from "./utils/actionUtils";
 
 async function run(): Promise<void> {
     try {
+        if (utils.isGhes()) {
+            core.info("Cache action is not supported on GHES");
+            return;
+        }
+
         if (!utils.isValidEvent()) {
             utils.logWarning(
                 `Event Validation Error: The event type ${