fix(keycloak): NullPointerException

Commit 4de835127f pushed by teutat3s#82
Workflow check.yml

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Set up job9s
Check out repository code2s
https://github.com/nixbuild/nix-quick-install-action@v266s
Calculate flake.lock hash0s
Restore and cache Nix store2m8s
Prepare cachix3s
Run flake checks4m36s
Complete job7m43s