Description 

This feature introduces support for the SONAR_BRANCH_NAME environment variable in the SonarQube integration within the InfluxDB plugin. It allows users to include branch-specific metrics and issues in the generated SonarQube URLs, ensuring precise analysis for multi-branch pipelines.

I have created a PR : https://github.com/jenkinsci/influxdb-plugin/pull/182

Functionality Added:

• Updated setSonarDetails to dynamically construct SonarQube URLs, including the branch parameter when SONAR_BRANCH_NAME is set.
• Improved logging to show the branch and host being used.

Testing and Validation:

• Validated the URLs generated for metrics and issues with both branch and default configurations.

Benefits:

Enhanced flexibility for branch-specific SonarQube analysis.

Impact Analysis:

This change is backward-compatible and does not affect existing functionality unless the SONAR_BRANCH_NAME variable is explicitly defined. It improves the usability of the plugin in multi-branch setups.

Requested Action:

Review and merge the changes.