fix(docker-image): update docker.io/library/nginx docker tag to v1.29.4

| datasource | package                 | from   | to     |
| ---------- | ----------------------- | ------ | ------ |
| docker     | docker.io/library/nginx | 1.29.3 | 1.29.4 |

Author: angelnu-bot[bot]

apps/default/comics/release.yaml

@@ -24,7 +24,7 @@ spec:
           app:
             image:
               repository: docker.io/library/nginx
-              tag: 1.29.3@sha256:553f64aecdc31b5bf944521731cd70e35da4faed96b2b7548a3d8e2598c52a42
+              tag: 1.29.4@sha256:fb01117203ff38c2f9af91db1a7409459182a37c87cced5cb442d1d8fcc66d19
       cronjob:
         enabled: true
         type: cronjob