use toString() instead of cast String or it will fail when using Spri…

…ng configtree (keycloak#10980)

Resolves keycloak#10979
Co-authored-by: Bruno Oliveira da Silva <bruno@abstractj.com>

Add GPG signing to boms

Add javadoc artefacts to spring bundles (keycloak#10261)

Closes keycloak#10260

Set version to 17.0.0

Set version to 16.1.1

Set version to 16.1.0

Update files

Set version to 15.1.1

Update files

Set version to 15.0.2