Add lockfile for dnf check-update

[MMA92]

Implement locking mechanism for dnf update checks to prevent concurrent executions.

Description

This pull request adds/updates/fixes [describe the main goal or feature].

Changes

• Improved
• Bug Fixes
• Feature
• Documentation
• Other

Context

[Provide the reason for the change or new feature. Mention if it addresses a bug, adds a new feature, or improves existing functionality.]

How Has This Been Tested?

• Tested on Arch Linux/Based Distro.
• Tested on Fedora Linux/Based Distro.
• Tested on openSuse.

Checklist

Please ensure your pull request meets the following requirements:

• My code follows the style guidelines of this project.
• I have performed a self-review of my code.
• I have commented on my code, particularly in hard-to-understand areas.
• My changes do not introduce new warnings.
• I have added tests that prove my fix is effective or that my feature works.
• I have made corresponding changes to the documentation
• New and existing unit tests pass locally with my changes.

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Related Issues

Additional Notes