Investigate pulling OpenTelemetry and Micrometer version from Accumulo repo

[dlmarion]

When OpenTelemetry and Micrometer versions change in the accumulo repo, they need to be updated in the terraform configuration directory to keep them in sync (ref commit). Investigate making this automatic. We might be able to remove the specific version references from the README and pull the versions from the pom and use them in the template somehow.

[ctubbsii]

I did this same thing in apache/accumulo-examples#84