(SERVER-2500) Increase ephemeralDHKeySize to 2048
(SERVER-2500) Increase ephemeralDHKeySize to 2048

Prior to this commit on el8 users would need to either run
update-crypto-policies --set LEGACY or manually edit the JAVA_ARGS
in /etc/sysconfig/puppetdb to include -Djdk.tls.ephemeralDHKeySize=2048.

This commit adds the DHKeySize option to the :java-args that are picked up
by Ezbake and maintains the existing -Xmx192m default that PuppetDB was
getting from ezbake/core.clj previously.

puppetlabs/puppetdb,puppetlabs/puppetdb,puppetlabs/puppetdb,puppetlabs/puppetdb,puppetlabs/puppetdb