Bump keycloak 26.4.2

[grafjo]

Motivation

Add references to relevant tickets or a short description about what motivated you do it. (E.g JIRA: https://issues.jboss.org/browse/AEROGEAR-{} AND/OR ISSUE: https://github.com/aerogear/standards/issues/{})

What

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Why

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How

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Verification Steps

Add the steps required to check this change. Following an example.

1. Go to XX >> YY >> SS
2. Create a new item N with the info X
3. Try to edit this item
4. Check if in the left menu the feature X is not so long present.

Checklist:

• Code has been tested locally by PR requester
• Changes have been successfully verified by another team member

Progress

• Finished task
• TODO

Additional Notes

PS.: Add images and/or .gifs to illustrate what was changed if this pull request modifies the appearance/output of something presented to the users.