Update dependency keycloak/keycloak to v20

This MR contains the following updates:

Package	Update	Change
keycloak/keycloak	major	19.0.1 -> 20.0.1

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Release Notes

keycloak/keycloak

v20.0.1

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v20.0.0

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v19.0.3

Compare Source

v19.0.2

Compare Source

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