ci: replace deprecated brew config (#873)

tap got replaces by repository and is now deprecated.

This deprecation warning can also be seen in the goreleaser logs:

>     • DEPRECATED: brews.tap should not be used anymore, check https://goreleaser.com/deprecations#brewstap for more info


https://github.com/k8sgpt-ai/k8sgpt/actions/runs/7521548656/job/20472514099

Signed-off-by: Philip Miglinci <pmig@glasskube.eu>
Co-authored-by: Thomas Schuetz <38893055+thschue@users.noreply.github.com>

.goreleaser.yaml

@@ -57,7 +57,7 @@ archives:
 brews:
   - name: k8sgpt
     homepage: https://k8sgpt.ai
-    tap:
+    repository:
       owner: k8sgpt-ai
       name: homebrew-k8sgpt