chore(deps): update helm release minio to v12.8.4 (#53)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

charts/prow/Chart.yaml

@@ -35,4 +35,4 @@ dependencies:
     version: "0.1.0"
   - name: minio
     repository: https://charts.bitnami.com/bitnami
-    version: "12.1.12"
+    version: "12.8.4"