Work around upstream GitHub issue and update dependencies

src/restore.ts

@@ -64,6 +64,7 @@ async function run() {
 
     reportError(e);
   }
+  process.exit();
 }
 
 function setCacheHitOutput(cacheHit: boolean): void {

src/save.ts

@@ -76,6 +76,7 @@ async function run() {
   } catch (e) {
     reportError(e);
   }
+  process.exit();
 }
 
 run();