Add dependabot

Author: Raihaan Shouhell

.dependabot/config.yml

@@ -0,0 +1,17 @@
+version: 1
+update_configs:
+- package_manager: "java:maven"
+  directory: "/"
+  update_schedule: "weekly"
+  default_reviewers:
+    - "thoulen"
+    - "jvz"
+    - "res0nance"
+  ignored_updates:
+    - match:
+        dependency_name: "org.jenkins-ci.main:jenkins-core"
+    - match:
+        dependency_name: "org.jenkins-ci.plugins*"
+    - match:
+        dependency_name: "io.jenkins.plugins*"
+