Update github workflows, add nightly builds

Author: burner1024

.github/workflows/build.yml

@@ -0,0 +1,40 @@
+on:
+  push:
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v4
+        with:
+          submodules: true
+
+      - name: Create Infinity Engine Mod Packages (.iemod and .zip)
+        uses: ALIENQuake/CreateIEModZipPackage@master
+        id: create_mod_package
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      # Nightly builds
+      - name: Upload artifacts
+        if: "!startsWith(github.ref, 'refs/tags/')"
+        uses: actions/upload-artifact@v4
+        with:
+          name: unique-artifacts
+          path: |
+            ${{ steps.create_mod_package.outputs.PackageBaseName }}.iemod
+            ${{ steps.create_mod_package.outputs.PackageBaseName }}.zip
+          if-no-files-found: error
+
+      # Tagged releases
+      - name: Create GitHub Release
+        if: startsWith(github.ref, 'refs/tags/')
+        uses: softprops/action-gh-release@v1
+        with:
+          files: |
+            ${{ steps.create_mod_package.outputs.PackageBaseName }}.iemod
+            ${{ steps.create_mod_package.outputs.PackageBaseName }}.zip
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/poify.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Poify/Unpoify
         uses: BGforgeNet/msg2po@dev