Add Implementation-Version to Manifests via pom.xml #3999

Job	Run time
Initialization / Initializing workflow	5s
Building ACME images	6m 58s
Publishing ACME images	0s
ACME with certbot / Test	5m 35s
ACME server switchover / Test	5m 22s
ACME container / Test	1m 44s
ACME with postgresql back-end / Test	7m 12s
	26m 56s

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