Update artifact actions

Author: jancona

.github/workflows/m17-gateway.yml

@@ -62,7 +62,7 @@ jobs:
       run: ls -la build/
 
     - name: Upload .deb package
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: debian-package
         path: build/*.deb
@@ -84,7 +84,7 @@ jobs:
     - uses: actions/checkout@v4
 
     - name: Download .deb package
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         name: debian-package
         path: ./