Update changelog (#1579)

* Update changelog

* Add links to PRs in changelog

Author: james-fossa

Changelog.md

@@ -1,5 +1,13 @@
 # FOSSA CLI Changelog
 
+## 3.11.3
+
+- Picks up the latest version of a dependency for `--x-snippet-scan`. ([#1579](https://github.com/fossas/fossa-cli/pull/1579))
+
+## 3.11.2
+
+- A performance fix for `--x-snippet-scan`. ([#1578](https://github.com/fossas/fossa-cli/pull/1578))
+
 ## 3.11.1
 
 - Better document `--x-snippet-scan`.