Update Actions to silence deprecation warnings.

.github/workflows/ci_build.yml

@@ -28,7 +28,7 @@ jobs:
     runs-on: ${{ matrix.cfg.os }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           path: korman
 
@@ -47,7 +47,7 @@ jobs:
             -NoInstaller -NoBlender
 
       - name: Upload Standalone Korman
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
           name: korman-standalone-${{ matrix.cfg.str }}
           path: build/package
@@ -60,7 +60,7 @@ jobs:
 
       - name: Upload Korman+Blender Bundle
         if: startsWith(github.ref, 'refs/tags')
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
           name: korman-blender-${{ matrix.cfg.str }}
           path: build/package
@@ -72,13 +72,13 @@ jobs:
 
     steps:
       - name: Checkout Korman
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           path: korman
 
       - name: Download Artifacts
         id: download
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v3
         with:
           path: artifacts