fix: Dockerfile to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-ALPINE314-BUSYBOX-2440608
- https://snyk.io/vuln/SNYK-ALPINE314-OPENSSL-3314653
- https://snyk.io/vuln/SNYK-ALPINE314-OPENSSL-3368739
- https://snyk.io/vuln/SNYK-ALPINE314-ZLIB-2434419
- https://snyk.io/vuln/SNYK-ALPINE314-ZLIB-2976174

Dockerfile

@@ -1,4 +1,4 @@
-FROM --platform=linux/amd64 node:16.13.0-alpine
+FROM --platform=linux/amd64 node:16.20.2-alpine
 
 # Set work directory
 WORKDIR /service