Update the @actions/cache package to the latest version (#390)

* Update the @actions/cache package to the latest version

Signed-off-by: Sora Morimoto <sora@morimoto.io>

package.json

@@ -26,7 +26,7 @@
     "@actions/core": "^1.2.0",
     "@actions/exec": "^1.0.1",
     "@actions/io": "^1.0.1",
-    "@actions/cache": "^1.0.1"
+    "@actions/cache": "^1.0.2"
   },
   "devDependencies": {
     "@types/jest": "^24.0.13",