Merge pull request #2367 from atom/dependabot/npm_and_yarn/tree-kill-1.2.2

Bump tree-kill from 1.2.1 to 1.2.2

Author: smashwilson

package-lock.json

@@ -69,7 +69,7 @@
     "relay-runtime": "5.0.0",
     "temp": "0.9.1",
     "tinycolor2": "1.4.1",
-    "tree-kill": "1.2.1",
+    "tree-kill": "1.2.2",
     "underscore-plus": "1.7.0",
     "what-the-diff": "0.6.0",
     "what-the-status": "1.0.3",