[Snyk] Security upgrade httpd from latest to 2.4-bullseye

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 Merge Request

• Dockerfile

We recommend upgrading to httpd:2.4-bullseye, as this image has only 59 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
	221	CVE-2021-4209 SNYK-DEBIAN11-GNUTLS28-2419151	No Known Exploit
	221	Use After Free SNYK-DEBIAN11-LIBXML2-2413974	No Known Exploit
	300	CVE-2021-4160 SNYK-DEBIAN11-OPENSSL-2388380	No Known Exploit
	317	CVE-2022-0778 SNYK-DEBIAN11-OPENSSL-2426309	No Known Exploit
	150	Information Exposure SNYK-DEBIAN11-UTILLINUX-2401081	No Known Exploit

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