chore(helm): update image docker.io/cthulhoo/ttrss-fpm-pgsql-static digest to b899989 (#30852)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| docker.io/cthulhoo/ttrss-fpm-pgsql-static | digest | `b6e1b00` ->
`b899989` |

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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: 18.4.4
+version: 18.4.6

charts/stable/tt-rss/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: docker.io/cthulhoo/ttrss-fpm-pgsql-static
   pullPolicy: IfNotPresent
-  tag: latest@sha256:b6e1b00a2c7016d5a70b3b6a1384bc3820f4ede2f55a4226f3e3313f4f8e5b36
+  tag: latest@sha256:b899989858284782f3404f9a4fc226110d208accf060fa7ab8dfa9fbafbc166d
 nginxImage:
   repository: docker.io/cthulhoo/ttrss-web-nginx
   pullPolicy: IfNotPresent
@@ -9,7 +9,7 @@ nginxImage:
 updaterImage:
   repository: docker.io/cthulhoo/ttrss-fpm-pgsql-static
   pullPolicy: IfNotPresent
-  tag: latest@sha256:b6e1b00a2c7016d5a70b3b6a1384bc3820f4ede2f55a4226f3e3313f4f8e5b36
+  tag: latest@sha256:b899989858284782f3404f9a4fc226110d208accf060fa7ab8dfa9fbafbc166d
 securityContext:
   container:
     readOnlyRootFilesystem: false