Add dependabot configuration

Change-Id: I52647fbdd5635b99989f6d442132b820ebbf5c98
diff --git a/.gitignore b/.gitignore
index d69402e..da31729 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 .*
 !/.gitignore
+!/.github
 target
 tmp
 logs