Migrate commons-lang2 to lang3

[gbhat618]

Prepare for jenkinsci/jenkins#26105 by removing lang2 usages.
lang3-api is already a dependency here, so just migrate the import to there

oic-auth-plugin/pom.xml

Lines 97 to 100 in f202e42

	<dependency>
	<groupId>io.jenkins.plugins</groupId>
	<artifactId>commons-lang3-api</artifactId>
	</dependency>

Testing done

• compilation successful with a local jenkins without having lang2 in it - mvn clean compile -Djenkins.version=2.574-SNAPSHOT

Submitter checklist

• Make sure you are opening from a topic/feature/bugfix branch (right side) and not your main branch!
• Ensure that the pull request title represents the desired changelog entry
• Please describe what you did
• Link to relevant issues in GitHub or Jira
• Link to relevant pull requests, esp. upstream and downstream changes
• Ensure you have provided tests that demonstrate the feature works or the issue is fixed

[gbhat618]

Need a release for it to test in jenkinsci/bom#6234, a label developer would work (label choose discussion jenkinsci/dockerhub-notification-plugin#94 (comment))

[gbhat618]

Hi @michael-doubez,
Requesting your help move this PR, we will need to add developer label to get release as well.
Please help. ty.

[michael-doubez]

LGTM