actions: update dependencies

Author: joshtynjala

.github/workflows/main.yml

@@ -7,9 +7,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
 
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: away3d-haxelib
           path: |
@@ -24,7 +24,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
 
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: krdlab/setup-haxe@v1
         with:
@@ -46,7 +46,7 @@ jobs:
         run: |
           haxe docs.hxml
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: away3d-docs
           path: docs
@@ -76,7 +76,7 @@ jobs:
           haxelib install openfl-samples --quiet
           haxelib git away3d-samples https://github.com/openfl/away3d-samples --quiet
 
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
           name: away3d-haxelib
           path: away3d-haxelib