Update changelog

Author: knolleary

CHANGELOG.md

@@ -1,4 +1,10 @@
+#### 0.3.0
+
+ - Require node.js >=14
+ - Add `setFlows` so that node being tested can modify flows (#54) @Steve-Mcl
+
 #### 0.2.7
+
  - Wait for startFlows to resolve before returning from loadFlow call - required with Node-RED 1.3+
  - README.md: Update example unit test to report assertion failures
  - examples: lower-case_spec.js: Allow proper assertion failure reporting (#45)