chore(container): update image cthulhoo/ttrss-web-nginx to 1552a0a by renovate (#27728)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| cthulhoo/ttrss-web-nginx | digest | `ec2fc01` -> `1552a0a` |

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charts/stable/tt-rss/Chart.yaml

@@ -34,4 +34,4 @@ sources:
   - https://hub.docker.com/r/cthulhoo/ttrss-fpm-pgsql-static
   - https://hub.docker.com/r/cthulhoo/ttrss-web-nginx
 type: application
-version: 18.2.1
+version: 18.2.2

charts/stable/tt-rss/values.yaml

@@ -5,7 +5,7 @@ image:
 nginxImage:
   repository: cthulhoo/ttrss-web-nginx
   pullPolicy: IfNotPresent
-  tag: latest@sha256:ec2fc01f11dfd0c2efbd9ca76cd28495e3925e6cf0ce99a06fdd5bff012491e0
+  tag: latest@sha256:1552a0aec6522e54f92ccb8743cfed2c6c539aaf7896b43eea7b2a518bd14839
 updaterImage:
   repository: cthulhoo/ttrss-fpm-pgsql-static
   pullPolicy: IfNotPresent