Update module github.com/getkin/kin-openapi to v0.98.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
github.com/getkin/kin-openapi	require	minor	v0.94.0 -> v0.98.0

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[glrf]

We remove the GitRepo Type default from the specification.

Our OpenAPI validation library added support for default values. This includes a feature/bug that fails the validation if defaults are set for merge-patch+json requests.

We currently define a GitRepo type default of auto . This is defined across all requests and responses. However this is arguably wrong for patches. When patching a resource we generally don't want to set default as this will lead to unexpected results (i.e. reverting to the default if we do not explicitly set it to the current value in the patch)

For this reason (and to fix the validation error) we remove the GitRepo type default from the specification.

The "more correct" solution would probably be to keep the default and add a different specification without the default for patch operations, but that would make the OpenAPI specification a lot harder to maintain, so I opted for the technically wrong solution.