Add hudson.Util.getPastTimeString Migration Rule

[sghill]

What's changed?

Introduced a new rule to automatically move from a deprecated method to a preferred one.

What's your motivation?

Starting to implement rewrite equivalents of the jackpot rules mentioned in Issue #6.

Checklist

• I've added unit tests to cover both positive and negative cases
• I've added the license header to any new files through ./gradlew licenseFormat
• I've used the IntelliJ auto-formatter on affected files
• I've updated the documentation (if applicable)

[timtebeek]

Did a retry of main to see the error that fails here is also there https://github.com/openrewrite/rewrite-jenkins/actions/runs/5560549004/jobs/10167585707 ; looked at the test but couldn't quite figure out why that started to fail. 🤔

[sghill]

@timtebeek Thanks for taking a look! I think resource ordering my have changed?

I inadvertently had a name collision (3a434c8) with this test recipe (commons-text -> commons-text-api) and a real recipe in src/main/resources (commons-lang3 -> commons-lang3-api). Looks like the test started favoring the main definition.