Add 4.3.x to the mix.

.github/workflows/main.yml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        haxe: [4.2.0, 4.2.1, 4.2.2, 4.2.3, 4.2.4, 4.2.5]
+        haxe: [4.2.0, 4.2.1, 4.2.2, 4.2.3, 4.2.4, 4.2.5, 4.3.0, 4.3.1, 4.3.2, 4.3.3, 4.3.4, 4.3.5, 4.3.6]
     steps:
     - uses: krdlab/setup-haxe@master
       with: