fix: skip OIDC settings configuration when Plone site or OIDC plugin is unavailable

[remdub]

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[Copilot]

Pull Request Overview

This PR improves error handling in the OIDC settings configuration by adding graceful fallbacks when either the Plone site or OIDC plugin are unavailable, preventing crashes during initialization.

• Added try-catch blocks to handle missing Plone site and OIDC plugin scenarios
• Modified the control flow to skip OIDC configuration when dependencies are unavailable
• Updated changelog to document the enhancement

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
src/pas/plugins/kimug/utils.py	Added error handling for missing Plone site and OIDC plugin with early returns
CHANGES.md	Added changelog entry documenting the new error handling behavior

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