Upgrade to node.js 18.12.1 for fastify (#7713)

frameworks/JavaScript/fastify/fastify-mysql.dockerfile

@@ -1,4 +1,4 @@
-FROM node:16.14.0
+FROM node:18.12.1-alpine
 
 COPY ./ ./
 

frameworks/JavaScript/fastify/fastify-postgres.dockerfile

@@ -1,4 +1,4 @@
-FROM node:16.14.0
+FROM node:18.12.1-alpine
 
 COPY ./ ./
 

frameworks/JavaScript/fastify/fastify.dockerfile

@@ -1,4 +1,4 @@
-FROM node:16.14.0
+FROM node:18.12.1-alpine
 
 COPY ./ ./