Update version pins in our CI test matrices for existing Consul versions
Note the exception for Consul 1.13 as the latest version has a known versioning bug in it that has since been fixed but not released
Add Consul 1.16 and Consul K8s 1.2 release candidates to all test matrices
How I've tested this PR:
🤖 tests pass
How I expect reviewers to test this PR:
🤖 tests pass
Checklist:
[x] Tests added
[ ] CHANGELOG entry added
Run make changelog-entry for guidance in authoring a changelog entry, and
commit the resulting file, which should have a name matching your PR number.
Entries should use imperative present tense (e.g. Add support for...)
Changes proposed in this PR:
How I've tested this PR:
🤖 tests pass
How I expect reviewers to test this PR:
🤖 tests pass
Checklist: