[prometheus-nginx-exporter] Update Helm release nginx to v22.2.1 (#6263)

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

Author: renovate[bot]

charts/prometheus-nginx-exporter/Chart.lock

@@ -1,6 +1,6 @@
 dependencies:
 - name: nginx
   repository: https://charts.bitnami.com/bitnami
-  version: 22.1.1
-digest: sha256:036e46163caa416740a5d55afb67ccd9f085d3230ccc2ae1e5ece09a3d6c260d
-generated: "2025-10-20T13:44:47.134916554Z"
+  version: 22.2.1
+digest: sha256:58d06dc0b4ef3967abbb056cc92fa0ad8840485aea152bfd4f95eb4d701ecf1a
+generated: "2025-10-24T14:08:10.776663287Z"

charts/prometheus-nginx-exporter/Chart.yaml

@@ -2,7 +2,7 @@
 apiVersion: v2
 description: A Helm chart for NGINX Prometheus Exporter
 name: prometheus-nginx-exporter
-version: 1.14.0
+version: 1.15.0
 # renovate: github-releases=nginx/nginx-prometheus-exporter
 appVersion: 1.5.1
 home: https://github.com/nginxinc/nginx-prometheus-exporter
@@ -33,6 +33,6 @@ annotations:
 type: application
 dependencies:
   - name: nginx
-    version: "22.1.1"
+    version: "22.2.1"
     repository: https://charts.bitnami.com/bitnami
     condition: nginx.enabled