chore(release): set package.json to 0.40.0 [skip ci]

# [0.40.0](jquense/react-big-calendar@v0.39.7...v0.40.0) (2022-03-24)

### Features

* **events:** default events prop to an empty array ([jquense#2161](jquense#2161)) ([efac0b2](jquense@efac0b2)), closes [jquense#1708](jquense#1708)

CHANGELOG.md

@@ -1,3 +1,10 @@
+# [0.40.0](https://github.com/jquense/react-big-calendar/compare/v0.39.7...v0.40.0) (2022-03-24)
+
+
+### Features
+
+* **events:** default events prop to an empty array ([#2161](https://github.com/jquense/react-big-calendar/issues/2161)) ([efac0b2](https://github.com/jquense/react-big-calendar/commit/efac0b26b365bbddb803ad256e22a5844cf36052)), closes [#1708](https://github.com/jquense/react-big-calendar/issues/1708)
+
 ## [0.39.7](https://github.com/jquense/react-big-calendar/compare/v0.39.6...v0.39.7) (2022-03-23)
 
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-big-calendar",
-  "version": "0.39.7",
+  "version": "0.40.0",
   "description": "Calendar! with events",
   "author": {
     "name": "Jason Quense",