Update changelog

Author: srid

doc/src/history.md

@@ -3,7 +3,9 @@
 ## 1.0.4 (UNRELEASED)
 
 - `om ci`: Allow impure builds through `impure = true;` setting in `om.yaml` (#445)
-- `om health`: Fix DetSys installer hijacking its own version into `nix --version` causing false Nix version detection. (#458)
+- `om health`
+  - Fix DetSys installer hijacking its own version into `nix --version` causing false Nix version detection. (#458)
+  - Add homebrew check (disabled by default) (#459)
 
 ## 1.0.3 (2025-03-17) {#1.0.3}