style: also format other yml files

.github/FUNDING.yml

@@ -1 +1 @@
-ko_fi: soundux
+ko_fi: soundux

.github/dependabot.yml

@@ -1,11 +1,11 @@
 version: 2
 updates:
-    - package-ecosystem: 'github-actions'
-      directory: '/'
+    - package-ecosystem: "github-actions"
+      directory: "/"
       schedule:
-          interval: 'daily'
+          interval: "daily"
       open-pull-requests-limit: 15
-    - package-ecosystem: 'gitsubmodule'
-      directory: '.'
+    - package-ecosystem: "gitsubmodule"
+      directory: "."
       schedule:
-          interval: 'daily'
+          interval: "daily"

deployment/flatpak/io.github.Soundux.yml

@@ -1,7 +1,7 @@
 app-id: io.github.Soundux
 runtime: org.gnome.Platform
-runtime-version: '3.38'
-sdk: org.gnome.Sdk 
+runtime-version: "3.38"
+sdk: org.gnome.Sdk
 command: soundux
 finish-args:
   - --device=all