fix: upgrading all github actions

actions/upload-artifact@2 was deprecated but let's upgrade them all

.github/workflows/build_executables.yml

@@ -17,10 +17,10 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Set up Python
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           python-version: "3.12" # Your Python version
 
@@ -45,7 +45,7 @@ jobs:
 
       - name: Upload executable as artifact
         if: success()
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
           name: ${{ matrix.os }}-executable
           path: |