Fix incorrect option name in changelog

Author: henrymercer

CHANGELOG.md

@@ -18,7 +18,7 @@
   object contains the `name` and `semanticVersion` of the
   corresponding QL pack, if such information is available.
 
-- `codeql github upload-sarif` is a new command that uploads a SARIF file
+- `codeql github upload-results` is a new command that uploads a SARIF file
   generated by CodeQL to GitHub's Code Scanning.
 
 ## Release 2.4.4 (2021-02-12)