chore(deps): update helm chart common to v6.12.4 (#875)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

charts/incubator/custom-app/Chart.yaml

@@ -3,7 +3,7 @@ appVersion: auto
 dependencies:
 - name: common
   repository: https://truecharts.org/
-  version: 6.12.3
+  version: 6.12.4
 deprecated: false
 description: Advanced tool to create your own TrueCharts-based App
 home: https://github.com/truecharts/apps/tree/master/charts/stable/custom-app
@@ -19,4 +19,4 @@ name: custom-app
 sources:
 - https://github.com/truecharts/apps/tree/master/charts/stable/custom-app
 type: application
-version: 0.2.12
+version: 0.2.13

charts/incubator/jdownloader2/Chart.yaml

@@ -3,7 +3,7 @@ appVersion: auto
 dependencies:
 - name: common
   repository: https://truecharts.org/
-  version: 6.12.3
+  version: 6.12.4
 deprecated: false
 description: JDownloader is a free, open-source download management tool with a huge
   community of developers that makes downloading as easy and fast as it should be.
@@ -26,4 +26,4 @@ sources:
 - https://hub.docker.com/r/jlesage/jdownloader-2
 - https://jdownloader.org/
 type: application
-version: 0.3.9
+version: 0.3.10

charts/incubator/nextcloud/Chart.yaml

@@ -3,7 +3,7 @@ appVersion: auto
 dependencies:
 - name: common
   repository: https://truecharts.org/
-  version: 6.12.3
+  version: 6.12.4
 - condition: postgresql.enabled
   name: postgresql
   repository: https://truecharts.org/
@@ -33,4 +33,4 @@ sources:
 - https://github.com/nextcloud/docker
 - https://github.com/nextcloud/helm
 type: application
-version: 3.7.2
+version: 3.7.3