chore(deps): update dependency @swc/core to v1.15.21 (#1071)

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

Author: renovate[bot]

package.json

@@ -45,7 +45,7 @@
     "@commitlint/config-conventional": "19.8.1",
     "@hello.nrfcloud.com/bdd-markdown-steps": "2.8.557",
     "@swc/cli": "0.8.0",
-    "@swc/core": "1.15.18",
+    "@swc/core": "1.15.21",
     "@types/aws-lambda": "8.10.161",
     "@types/cfn-response": "1.0.8",
     "@types/jsonwebtoken": "9.0.10",