Update changelog

Fixes #2538

CHANGELOG.md

+## v4.10.0
+
+https://github.com/sass/node-sass/releases/tag/v4.10.0
+
+## v4.9.4
+
+https://github.com/sass/node-sass/releases/tag/v4.9.4
+
+## v4.9.3
+
+https://github.com/sass/node-sass/releases/tag/v4.9.3
+
+## v4.9.2
+
+https://github.com/sass/node-sass/releases/tag/v4.9.2
+
+## v4.9.1
+
+https://github.com/sass/node-sass/releases/tag/v4.9.1
+
+## v4.9.0
+
+https://github.com/sass/node-sass/releases/tag/v4.9.0
+
+## v4.8.3
+
+https://github.com/sass/node-sass/releases/tag/v4.8.3
+
+## v4.8.2
+
+https://github.com/sass/node-sass/releases/tag/v4.8.2
+
 ## v4.8.1
 
 https://github.com/sass/node-sass/releases/tag/v4.8.1