Bump paperless-ngx/paperless-ngx in /projects/paperless

Bumps [paperless-ngx/paperless-ngx](https://github.com/paperless-ngx/paperless-ngx) from 3.0.5 to 3.2.1.
- [Release notes](https://github.com/paperless-ngx/paperless-ngx/releases)
- [Changelog](https://github.com/paperless-ngx/paperless-ngx/blob/dev/docs/changelog.md)
- [Commits](https://github.com/paperless-ngx/paperless-ngx/compare/v3.0.5...v3.2.1)

---
updated-dependencies:
- dependency-name: paperless-ngx/paperless-ngx
  dependency-version: 3.2.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

projects/paperless/docker-compose.yml

@@ -1,7 +1,7 @@
 version: '3.8'
 services:
   paperless:
-    image: ghcr.io/paperless-ngx/paperless-ngx:3.0.5
+    image: ghcr.io/paperless-ngx/paperless-ngx:3.2.1
     deploy:
       resources:
         limits: