ci: adjust installed Ubuntu packages

[daniel-mader]

Description of change

With Ubuntu 24.04, we get the following error when installing dependencies: E: Unable to locate package libwebkit2gtk-4.0-dev.
According to the Tauri documentation on GitHub pipelines, the usage of this package is replaced with a newer version.

Links to any relevant issues

n/a

How the change has been tested

n/a

Definition of Done checklist

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• I have followed the contribution guidelines for this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes