Capture source language for Scala 3

[kanderson250]

We generate a supportability metric showing a customer's source language and version. Currently for Scala, we detect the source language version from a method called versionNumberString.

newrelic-java-agent/newrelic-agent/src/main/java/com/newrelic/agent/language/SourceLibraryDetector.java

Line 26 in 00f7b8d

private static final String SCALA_VERSION_METHOD = "versionNumberString";

This is broken for Scala 3 because this method doesn't exist in the Scala 3 source. It appears to have been replaced by versionNumberOrString.

Modify the Source Library Detector to capture the source language version for Scala 3 as well as lower versions of Scala. Verify that the Supportability/SourceLanguage/* metric is generated for Scala 3 environments.

[workato-integration]

https://new-relic.atlassian.net/browse/NR-335744