[MARCHETYPES-76] maven-archetype-quickstart generates EOLed maven.compiler setup

[judovana]

if the #24 will be merged, the [MARCHETYPES-76] will be fixed too, however the
1.8 bump test for maven-archetype-quickstart will lost sesne/

The test should be changed from bump 1.7 -> 1.8 to downgrade 1.8 to 1.7, so the action is of "change the jdk" will persist. and - as bumps to modular jdks are there, change to non-modular jdk should remain here, as there is "if" in macros to modular/non modular jdk, so even once default jdk will be modular, the downgrade to non modular jdk should remain here

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[judovana]

Note, that the CI on this is, and will be failing, untill #24 is merged. I have no issues to add this into #24 itself, but @slachiewicz required to have this test change in separate PR.

Note, that without #24 the change do not have any reasoning.

[judovana]

I had rebased it so it is not based on #23, as it do not need to be.
I is still depending on #24 anyway (aka have no reasoning without it)