feat(rel): update changelog with 6.5.0 (#1178)

Author: jdpleiness

CHANGELOG.md

@@ -13,6 +13,12 @@ All notable changes to `src-cli` are documented in this file.
 
 ### Added
 
+### Changed
+
+## 6.5.0
+
+### Added
+
 - SBOM support: Added `--image` and `--exclude-image` flags to `src sbom fetch` for filtering which docker images SBOMs are fetched for. Both flags support glob patterns (e.g., `frontend`, `*api*`) and comma-separated lists. The `sourcegraph/` image name prefix is optional.
 
 ### Changed