docker-compose(deps): bump gotenberg/gotenberg in /docker/compose

Bumps gotenberg/gotenberg from 8.37 to 8.38.

---
updated-dependencies:
- dependency-name: gotenberg/gotenberg
  dependency-version: '8.38'
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

docker/compose/docker-compose.postgres-tika.yml

@@ -67,7 +67,7 @@ services:
       PAPERLESS_TIKA_GOTENBERG_ENDPOINT: http://gotenberg:3000
       PAPERLESS_TIKA_ENDPOINT: http://tika:9998
   gotenberg:
-    image: docker.io/gotenberg/gotenberg:8.37
+    image: docker.io/gotenberg/gotenberg:8.38
     restart: unless-stopped
     # The gotenberg chromium route is used to convert .eml files. We do not
     # want to allow external content like tracking pixels or even javascript.