Update GitHub Actions to use latest action versions

Author: nuken

.github/workflows/build-unsigned.yml

@@ -12,12 +12,12 @@ jobs:
 
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
-          python-version: '3.12'
+          python-version: '3.13'
 
       - name: Install Dependencies
         run: |
@@ -33,7 +33,7 @@ jobs:
           & "C:\Program Files (x86)\Inno Setup 6\ISCC.exe" setup.iss
           
       - name: Upload Installer as Artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: RokuBridge-Unsigned-Installer
           path: Output/*.exe