fix: package.json & package-lock.json to reduce vulnerabilities (#97)

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-XML2JS-5414874

package.json

@@ -33,7 +33,7 @@
     "@jambonz/siprec-client-utils": "^0.2.4",
     "@jambonz/stats-collector": "^0.1.8",
     "@jambonz/time-series": "^0.2.5",
-    "aws-sdk": "^2.1261.0",
+    "aws-sdk": "^2.1354.0",
     "bent": "^7.3.12",
     "cidr-matcher": "^2.1.1",
     "debug": "^4.3.4",