Add changelog section for v2.0.554 [skip ci]

Author: PEZ

CHANGELOG.md

@@ -4,6 +4,8 @@ Changes to Calva.
 
 ## [Unreleased]
 
+## [2.0.554] - 2026-02-17
+
 - Fix: [Evaluate Current Form to Comment missing from context menu](https://github.com/BetterThanTomorrow/calva/issues/3063)
 - Fix: [Error instrumenting function through command palette](https://github.com/BetterThanTomorrow/calva/issues/2966)
 - Fix: [paredit.insertSemiColon requires two undo operations in structure-preserving case](https://github.com/BetterThanTomorrow/calva/issues/3059)