Cache hit output (#373)

* Remove useless await in getCacheDistributor calls

* Added cache-hit output

* Build action with cache-hit output

* Remove PromiseReturnType, add matchedKey == primaryKey check

* Update cache-distributor.ts

* Fix tests and rebuild

src/cache-distributions/cache-distributor.ts

@@ -41,12 +41,17 @@ abstract class CacheDistributor {
       restoreKey
     );
 
+    this.handleMatchResult(matchedKey, primaryKey);
+  }
+
+  public handleMatchResult(matchedKey: string | undefined, primaryKey: string) {
     if (matchedKey) {
       core.saveState(State.CACHE_MATCHED_KEY, matchedKey);
       core.info(`Cache restored from key: ${matchedKey}`);
     } else {
       core.info(`${this.packageManager} cache is not found`);
     }
+    core.setOutput('cache-hit', matchedKey === primaryKey);
   }
 }