CHANGELOG: Add 2.5.4

Author: adityasharad

CHANGELOG.md

@@ -1,5 +1,18 @@
 # CodeQL CLI changelog
 
+## Release 2.5.4 (2021-05-03)
+
+- This release is identical to release 2.5.3, except that
+  `codeql database analyze` no longer produces a generated
+  `automationDetails.id` field when the `--sarif-category`
+  is not explicitly provided. Previously, the
+  `--sarif-category` was autogenerated if not present.
+- Code Scanning users should upgrade to this version and
+  avoid 2.5.3.
+- If you plan to upload databases to an LGTM
+  Enterprise 1.27 instance, you need to create them with release
+  2.4.6.
+  
 ## Release 2.5.3 (2021-04-30)
 
 - The bundled extractors are updated to match the versions currently