Chore/aula 2308 headers injector

[kittyradulescu]

Technical Context

We have deprecated the security-headers-config service a while back. This service was responsible for adding the headers and I found the code in graveyard. At that time when we deprecated the service we might have not wanted to include the headers so we removed the service as we were not using it. Once we restore the service in all the institutions and re-deploy the web applications on all the institutions we'll have the headers in on the web-app.

The function name was exceeding 64 characters that prevented deployment to environments so I changed the name of the function to contain less characters.

${institution}-security-headers-injector-prod-injectSecurityHeaders, to ${institution}-security-headers-injector-prod-injectHeaders.

Code in graveyard

Documentation in Notion where it is explained how the headers are used can be found here:
Security headers in Notion

Changelog

- Chore | Restored the security-headers-config and upgraded to use Node 18.

Loom/Screenshot

Not needed.

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