Update dependabot.yml (#5113)

Author: EricWittmann

.github/dependabot.yml

@@ -28,9 +28,9 @@ updates:
 
   - package-ecosystem: maven
     directory: "/"
-    target-branch: 2.5.x
+    target-branch: 2.6.x
     schedule:
-      interval: daily
+      interval: weekly
     groups:
       backport-dependencies:
         patterns:
@@ -114,4 +114,4 @@ updates:
       patterns:
         - "*"
       update-types:
-        - "patch"
+        - "patch"