Fix cache-hit state boolean cast

dist/setup/index.js

@@ -131919,7 +131919,7 @@ function save(id) {
             core.warning('Error retrieving key from state.');
             return;
         }
-        if (!!cacheHit || cacheHit !== 'false') {
+        if (cacheHit === 'true') {
             // no change in target directories
             core.info(`${cacheHit}: Cache hit occurred on the primary key ${primaryKey}, not saving cache.`);
             return;