Upgrade to GitHub-native Dependabot

Author: dependabot-preview[bot]

.github/dependabot.yml

@@ -0,0 +1,45 @@
+version: 2
+updates:
+- package-ecosystem: maven
+  directory: "/"
+  schedule:
+    interval: daily
+  open-pull-requests-limit: 10
+  ignore:
+  - dependency-name: com.google.protobuf:protobuf-java
+    versions:
+    - 3.15.0
+    - 3.15.1
+    - 3.15.2
+    - 3.15.4
+    - 3.15.5
+- package-ecosystem: maven
+  directory: "/lib"
+  schedule:
+    interval: daily
+  open-pull-requests-limit: 10
+- package-ecosystem: maven
+  directory: "/player"
+  schedule:
+    interval: daily
+  open-pull-requests-limit: 10
+- package-ecosystem: maven
+  directory: "/api"
+  schedule:
+    interval: daily
+  open-pull-requests-limit: 10
+- package-ecosystem: maven
+  directory: "/dacp"
+  schedule:
+    interval: daily
+  open-pull-requests-limit: 10
+- package-ecosystem: maven
+  directory: "/sink"
+  schedule:
+    interval: daily
+  open-pull-requests-limit: 10
+- package-ecosystem: maven
+  directory: "/sink-api"
+  schedule:
+    interval: daily
+  open-pull-requests-limit: 10