[prometheus-redis-exporter] Update dependency oliver006/redis_exporter to v1.74.0 (#5774)

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

Author: renovate[bot]

charts/prometheus-redis-exporter/Chart.yaml

@@ -1,9 +1,9 @@
 apiVersion: v2
 # renovate: github=oliver006/redis_exporter
-appVersion: v1.73.0
+appVersion: v1.74.0
 description: Prometheus exporter for Redis metrics
 name: prometheus-redis-exporter
-version: 6.11.0
+version: 6.12.0
 home: https://github.com/oliver006/redis_exporter
 sources:
   - https://github.com/oliver006/redis_exporter