prepare 6.2.2 release (#232)

Author: LaunchDarklyReleaseBot

package.json

@@ -25,7 +25,7 @@
   "homepage": "https://github.com/launchdarkly/node-server-sdk",
   "dependencies": {
     "async": "^3.1.0",
-    "launchdarkly-eventsource": "1.4.1",
+    "launchdarkly-eventsource": "1.4.2",
     "lru-cache": "^6.0.0",
     "node-cache": "^5.1.0",
     "semver": "^7.3.0",