JVMCBC-1684 Configure Dependabot to keep Jackson and Netty up to date

Submitting on behalf of Yeikel Santana https://github.com/yeikel

GitHub PR: #40

Change-Id: I0ec6da15bb3222c0971261957928cefb36fdddca
Reviewed-on: https://review.couchbase.org/c/couchbase-jvm-clients/+/233468
Tested-by: Build Bot <[email protected]>
Reviewed-by: Michael Reiche <[email protected]>

Author: dnault

.github/dependabot.yml

@@ -0,0 +1,31 @@
+version: 2
+
+updates:
+  - package-ecosystem: "maven"
+    directory: "/"
+    schedule:
+      interval: "daily"
+    allow:
+      - dependency-name: "io.netty:*"
+      - dependency-name: "com.fasterxml.jackson.core:*"
+      - dependency-name: "com.fasterxml.jackson.module:*"
+    ignore:
+      # Allow only patch updates for Netty
+      - dependency-name: "io.netty:*"
+        update-types:
+          - version-update:semver-major
+          - version-update:semver-minor
+  - package-ecosystem: "maven"
+    directory: "/core-io-deps"
+    schedule:
+      interval: "daily"
+    allow:
+      - dependency-name: "io.netty:*"
+      - dependency-name: "com.fasterxml.jackson.core:*"
+      - dependency-name: "com.fasterxml.jackson.module:*"
+    ignore:
+      # Allow only patch updates for Netty
+      - dependency-name: "io.netty:*"
+        update-types:
+          - version-update:semver-major
+          - version-update:semver-minor