Fix JetBrains icon path in README

Author: matifali

registry/coder/modules/jetbrains/README.md

@@ -1,7 +1,7 @@
 ---
 display_name: JetBrains Toolbox
 description: Add JetBrains IDE integrations to your Coder workspaces with configurable options.
-icon: ../.icons/jetbrains.svg
+icon: ../../../../.icons/jetbrains.svg
 verified: true
 tags: [ide, jetbrains, parameter]
 ---