chore(release): 1.9.0 [skip ci]

# [1.9.0](https://gitlab.opencode.de/bmi/opendesk/deployment/opendesk/compare/v1.8.0...v1.9.0) (2025-11-07)

### Bug Fixes

* **collabora:** Update from 25.04.4.3.1 to 25.04.5.3.1 ([e0128e6](e0128e6ccf))
* **element:** Increase message and media rate limits ([13968a8](13968a8133))
* **element:** Update favicon to use PNG version ([f8104f6](f8104f6358))
* **element:** Update Synapse from v1.137.0 to v1.141.0; fixes https://github.com/element-hq/synapse/security/advisories/GHSA-fh66-fcv5-jjfr which applies to all openDesk deployments using Element/Matrix with federation enabled ([02d3021](02d3021c4b))
* **element:** Update widgets primary color theme settings ([94394a1](94394a1e3e))
* **gitlab:** Add issue templates ([26da7e3](26da7e3667))
* **helmfile:** Support setting the `defaultLanguage` - relevant for OX App Suite and XWiki - in `functional.yaml.gotmpl` ([24065db](24065dbc70))
* **helmfile:** Use passwords defined in `database.yaml.gotmpl` for Cassandra when available ([0268219](026821996a))
* **notes:** Fix python path for self signed certs ([c4279d1](c4279d11bb))
* **notes:** Fix repeated redirects on expired session; Remove fetching of external assets ([c1012f4](c1012f4e65))
* **open-xchange:** Don't enable sasl auth when no relay host is set ([ff3b221](ff3b221870))
* **open-xchange:** Enable and configure defaults for ContactCollector, remove legacy config artifacts ([465f60d](465f60d4a2))
* **open-xchange:** Use masterpassword for mailfilter in migration Pods; use PLAIN instead of OAuth for SASL ([484dfaf](484dfafe64))
* **ox-connector:** Use FQDN for internal service URLs ([8593d5f](8593d5f2bd))

### Features

* **helmfile:** Add toggle for external mail client onboarding and allow non-default FQDNs for IMAP and SMTP endpoints ([25a97ab](25a97abba6))
* **open-xchange:** Enable XRechnung in Viewer ([08e6ec5](08e6ec59d2))
* **openproject:** Update from 16.4.1 to 16.5.1 ([74cf2ee](74cf2ee0d8))

helmfile/environments/default/global.generated.yaml.gotmpl

@@ -3,5 +3,5 @@
 ---
 global:
   systemInformation:
-    releaseVersion: "v1.8.0"
+    releaseVersion: "v1.9.0"
 ...