[Snyk] Security upgrade node from 14.19.2-alpine3.15 to fermium-alpine3.15

[snyk-bot]

Keeping your Docker base image up-to-date means you’ll benefit from security fixes in the latest version of your chosen image.

Changes included in this PR

• Dockerfile-node-14

We recommend upgrading to node:fermium-alpine3.15, as this image has only 1 known vulnerabilities. To do this, merge this pull request, then verify your application still works as expected.

Some of the most important vulnerabilities in your base image include:

Severity	Priority Score / 1000	Issue	Exploit Maturity
	371	HTTP Request Smuggling SNYK-UPSTREAM-NODE-2946427	No Known Exploit
	371	HTTP Request Smuggling SNYK-UPSTREAM-NODE-2946428	No Known Exploit
	371	HTTP Request Smuggling SNYK-UPSTREAM-NODE-2946723	No Known Exploit
	371	DLL Hijacking SNYK-UPSTREAM-NODE-2946727	No Known Exploit
	371	Information Exposure SNYK-UPSTREAM-NODE-2946729	No Known Exploit

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