build(deps): bump the gotify group across 2 directories with 1 update (#547)

Bumps the gotify group with 1 update in the /.ci directory: gotify/server.
Bumps the gotify group with 1 update in the /.devcontainer directory: gotify/server.


Updates `gotify/server` from 2.8.0 to 2.9.1

Updates `gotify/server` from 2.8.0 to 2.9.1

---
updated-dependencies:
- dependency-name: gotify/server
  dependency-version: 2.9.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: gotify
- dependency-name: gotify/server
  dependency-version: 2.9.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: gotify
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.ci/docker-compose.yml

@@ -3,7 +3,7 @@ version: "3"
 services:
   gotify:
     container_name: ci_gotify
-    image: gotify/server:2.8.0
+    image: gotify/server:2.9.1
     ports:
       - "127.0.0.1:8080:80"
     environment:

.devcontainer/docker-compose.yml

@@ -15,7 +15,7 @@ services:
 
   gotify:
     container_name: gotify-server
-    image: gotify/server:2.8.0
+    image: gotify/server:2.9.1
     ports:
       - "8080:80"
     environment: