fix(deps): update dependency @aws-lambda-powertools/metrics to v2.21.0 (#1361)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -121,7 +121,7 @@
   },
   "prettier": "@bifravst/prettier-config",
   "dependencies": {
-    "@aws-lambda-powertools/metrics": "2.18.0",
+    "@aws-lambda-powertools/metrics": "2.21.0",
     "@bifravst/aws-ssm-settings-helpers": "1.2.130",
     "@bifravst/from-env": "3.0.2",
     "@bifravst/run": "1.2.0",