Add Dependabot config and schedule CI workflows

.github/dependabot.yml

@@ -0,0 +1,20 @@
+version: 2
+
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+
+    schedule:
+      interval: "cron"
+      cronjob: "0 2 1 * *"  # 02:00 on the 1st of every month
+      timezone: "Europe/Berlin"
+
+    open-pull-requests-limit: 5
+
+    groups:
+      github-actions:
+        patterns:
+          - "*"
+
+    commit-message:
+      prefix: "ci"

.github/workflows/Build_RPS_AppKit-E8.yml

@@ -21,6 +21,8 @@ on:
     branches: [main]
   push:
     branches: [main]
+  schedule:
+  - cron: '0 20 * * 0' # Runs at 20:00 on Sunday
 
 permissions:
   contents: read

.github/workflows/Test_RPS_SSE-320-U85.yml

@@ -21,6 +21,8 @@ on:
     branches: [main]
   push:
     branches: [main]
+  schedule:
+  - cron: '0 20 * * 0' # Runs at 20:00 on Sunday
 
 jobs:
   CI: