chore(deps): update node.js to v22.21.1 (#4)

Co-authored-by: ibm-mend-app[bot] <ibm-mend-app[bot]@users.noreply.github.com>

Author: ibm-mend-app[bot]

.tool-versions

@@ -1 +1 @@
-nodejs 22.20.0
+nodejs 22.21.1