message: meta(changelog): Fix items incorrectly added to 5.4.1
  Moves items that were incorrectly added under the 5.4.1 release instead of "Unreleased".
diff: ## Unreleased
  +- [node] fix: Force agent-base to be at version 4.3.0 to fix various issues. Fix #1762, fix #2085
  +- [utils] fix: Better native `fetch` detection via iframes. Fix #1601
  - [integrations] fix: Tracing integration fetch headers bug where trace header is not attached if there are no options.
  ## 5.4.1
  - [integrations] fix: Tracing integration fetch headers bug.
  -- [node] fix: Force agent-base to be at version 4.3.0 to fix various issues. Fix #1762, fix #2085
  -- [utils] fix: Better native `fetch` detection via iframes. Fix #1601
  ## 5.4.0
  