[#267] update build pipeline

[bmarwell]

• Define min and max memory for maven
• move common maven options to variabble
• Build matrix of JDK 11, 17 and Groovy 3-latest and 4-latest.

Other things to note:

• Remove node12-based actions (checkout v2)
• Use a specific distribution (temurin for now, most common))
• remove default architecture 'x64'
• Option to add Java 21 later
• Option to add groovy 5 later
• Check includes default versions as defined in pom by using empty string
• Features github expressions instead of relying on bash strict mode (which doesn't work the way you think)

[bmarwell]

Actually, I can also use a 2.x version this way. Will update the PR

[keeganwitt]

I copy/pasted most of this over to #269

[keeganwitt]

I think I've moved over everything from this PR. Thanks for this! It's much cleaner than what I was playing with.

I think we can close this now. Lemme know if there's anything I missed.