Merge pull request linode#349 from Jskobos/add-missing-js-client-changelog

Add missing JS client changelog (v0.45.0)

Author: bbiggerr

src/content/changelog/js-client-changelog-0-45-0.md

@@ -0,0 +1,17 @@
+---
+title: Linode APIv4 JS Client v0.45.0
+date: 2021-03-01T00:00:00.000Z
+version: 0.45.0
+changelog:
+  - APIv4 JS Client
+---
+
+### Added
+
+- profile_update event type
+
+### Changed
+
+- Firewall validation schema (ports are now optional)
+- Firewall rule validation schema (add label and description fields)
+- Update Node version from 10.16 to 14.15.4