ci: bump checkout/upload-artifact/setup-python actions to current versions

.github/workflows/windows-build.yml

@@ -25,9 +25,9 @@ jobs:
       fail-fast: false
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: '3.14.2'
           architecture: ${{ matrix.arch }}
@@ -143,7 +143,7 @@ jobs:
 
       - name: Upload Installer
         id: upload_installer
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: Installer ${{ matrix.arch }}
           path: ZoiteChat-*.exe
@@ -157,7 +157,7 @@ jobs:
 
       - name: Upload Build Files
         id: upload_buildfiles
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: Build Files ${{ matrix.arch }}
           path: zoitechat-build