fix: fix working directory issue (DCD-5103)

[LukasKuzavas]

https://genesisglobal.atlassian.net/browse/DCD-5103

fix issue of sonarcloud analysis failing due to working directory resolved as with starting ././ which causes action to fail
https://github.com/genesislcap/pbi/actions/runs/30079369539?pr=2592

[github-actions]

🤖 Hi @LukasKuzavas, I've received your request, and I'm working on it now! You can track my progress in the logs for more details.

[github-actions]

## 📋 Review Summary

This Pull Request addresses the working directory resolution issue for SonarCloud analysis (DCD-5103) by cleanly decoupling the working-directory and server-path inputs. This resolves potential failures caused by redundant ././ prefixed directory paths when running under certain configurations. The proposed refactoring improves modularity, readability, and overall pipeline robustness.

🔍 General Feedback

• Clean Decoupling: Excellent work separating working-directory and server-path parameters in build-gradle-g8.yml and sonarcloud.yml to prevent duplicate directory prefixes.
• Improved Documentation: The addition of a detailed parameter description for server-path in sonarcloud.yml provides valuable clarity for workflow users.
• Syntax Standards: Standardized newline formatting at the end of .github/workflows/sonarcloud.yml is a nice compliance touch.

[github-actions]

🟡 To ensure robust handling of various inputs (such as an empty string `""` or `./` directory paths), we should extend the check for `inputs.working-directory`.

If inputs.working-directory is passed as an empty string, the expression currently falls back to format('{0}/{1}', '', 'server') which evaluates to /server (an absolute path pointing to root instead of a relative project path). Checking for empty strings and ./ will prevent this edge-case failure.

Suggested change

	SERVER_DIR: ${{ inputs.working-directory == '.' && inputs.server-path || format('{0}/{1}', inputs.working-directory, inputs.server-path) }}
	SERVER_DIR: ${{ (inputs.working-directory == '.' || inputs.working-directory == '' || inputs.working-directory == './') && inputs.server-path || format('{0}/{1}', inputs.working-directory, inputs.server-path) }}