Support sqlcommenter style comments

[jbedell-newrelic]

This is likely a problem in the Java Agent as well...

The OpenTelemetry Ruby SQL obfuscation and statement extraction code was largely a copy-paste project from the New Relic Ruby agent. While refactoring that code in open-telemetry/opentelemetry-ruby-contrib#529, we discovered statement extraction and SQL obfuscation needed some tweaking when sqlcommenter was used.

Commit where edge case was discussed: open-telemetry/opentelemetry-ruby-contrib@b8b2605 (look at resolved discussions)
Commit with fix: open-telemetry/opentelemetry-ruby-contrib@82584ba
This PR adds test cases to the cross-agent tests to cover sqlcommenter.

Source: https://source.datanerd.us/agents/cross_agent_tests/pull/155

[workato-integration]

https://new-relic.atlassian.net/browse/NR-271756

[jtduffy]

I verified our existing SQL obfuscation code properly handles prepended SQLCommenter comments. Manually copied the new cross agent test cases into the SQLObfuscator test and all passed.