Updated konga chart to use shared-library

[StevenJDH]

Description

This pull request updates the helm chart for konga to make use of the shared-library and to apply a few minor fixes.

Dependencies:

• shared-library chart 0.1.3
• kong chart ^9.x

Does this introduce a breaking change?

• Yes
• No

Pull Request Type

What kind of change does this Pull Request introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables, renaming)
• Refactoring (no functional changes, no api changes)
• Documentation content changes
• Other (please describe):

How has this been tested?

• Chart testing (ct lint).
• KIND tests.
• Full deployment.

Test Configuration:

• chart-testing v3.10.1
• KIND 1.19.x and 1.24.x, 1.29.x.

Checklist:

• My code follows the style guidelines of 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.
• My changes generate no new warnings.
• I have added tests that prove my fix is effective or that my feature works.
• Any dependent changes have been merged and published in downstream modules.

Other Information

N/A