Added support for GPG

src/cleanup-java.ts

@@ -0,0 +1,16 @@
+import * as core from '@actions/core';
+import * as gpg from './gpg';
+
+async function run() {
+  if (core.getInput('gpg-private-key', {required: false})) {
+    console.log('removing private key from keychain');
+    try {
+      const keyFingerprint = core.getState('gpg-private-key-fingerprint');
+      await gpg.deleteKey(keyFingerprint);
+    } catch (error) {
+      core.setFailed(error.message);
+    }
+  }
+}
+
+run();