Switch to json release-it config file

YAML version broke on a recent upgrade.

Author: solebared

.release-it.json

@@ -0,0 +1,13 @@
+{
+  "github": {
+    "release": true
+  },
+  "npm": {
+    "publish": false
+  },
+  "plugins": {
+    "@release-it/keep-a-changelog": {
+      "filename": "CHANGELOG.md"
+    }
+  }
+}