chore(deps): update nginx docker tag to v1.28.2

| datasource | package | from   | to     |
| ---------- | ------- | ------ | ------ |
| docker     | nginx   | 1.28.1 | 1.28.2 |

Author: renovate[bot]

Dockerfile

@@ -22,5 +22,5 @@ STOPSIGNAL SIGQUIT
 WORKDIR /app
 
 # used by renovate to update
-FROM nginx:1.28.1@sha256:88d42e21931edb8a4fae4c419b00e93cb69eb91eb860faffe91ea6915cf0a3cb
+FROM nginx:1.28.2@sha256:9e2d97e1d3c9f1a3e6dc6bc4d03ee7a5262aff56c0eb35784fa771e3d37337a4