chore: update maintainers list - volker.raschek (#933)

Reviewed-on: https://gitea.com/gitea/helm-gitea/pulls/933
Reviewed-by: delvh <dev.lh@web.de>
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: Markus Pesch <markus.pesch@cryptic.systems>
Co-committed-by: Markus Pesch <markus.pesch@cryptic.systems>

CODEOWNERS

@@ -1 +1 @@
-@rossigee
+* @rossigee @volker.raschek

Chart.yaml

@@ -19,9 +19,14 @@ sources:
   - https://github.com/go-gitea/gitea
   - https://docker.gitea.com/gitea
 maintainers:
+  # https://gitea.com/rossigee
   - name: Ross Golder
     email: ross@golder.org
 
+  # https://gitea.com/volker.raschek
+  - name: Markus Pesch
+    email: markus.pesch+apps@cryptic.systems
+
 dependencies:
   # https://github.com/bitnami/charts/blob/main/bitnami/postgresql
   - name: postgresql