Bump upload-artifact and download-artifact action to v4 (#652)

.github/workflows/packages.yml

@@ -47,8 +47,9 @@ jobs:
           patchelf --replace-needed ${SQLITE_LIB} libsqlite3.so.0 ./pygeodiff-binaries/libpygeodiff-${GEODIFF_VER}-python.so
           patchelf --remove-rpath ./pygeodiff-binaries/libpygeodiff-${GEODIFF_VER}-python.so
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
+          name: artifact-pygeodiff-linux
           path: ./pygeodiff-binaries/*.so
 
   build_windows_binaries:
@@ -75,8 +76,9 @@ jobs:
           unzip -o pygeodiff-$env:GEODIFF_VER-cp$env:PYTHON_VER-cp$env:PYTHON_VER-win_amd64.whl -d tmp64
           copy tmp64\pygeodiff\*.pyd pygeodiff-binaries\
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
+          name: artifact-pygeodiff-windows
           path: ./pygeodiff-binaries/*.pyd
 
   build_macos_binary:
@@ -109,8 +111,9 @@ jobs:
             exit 1
           fi
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
+          name: artifact-pygeodiff-macos
           path: ./pygeodiff-binaries/*.dylib
 
   create_mergin_plugin_package:
@@ -147,8 +150,16 @@ jobs:
             echo "geodiff version defined in python-api-client requires.txt $GEODIFF_VER_FROM_CLIENT does not equal $GEODIFF_VER from the workpackage file"
             exit 1; # or just warning??
           fi
+      - name: Merge Artifacts
+        uses: actions/upload-artifact/merge@v4
+        with:
+          name: artifact
+          path: artifact-pygeodiff
+          pattern: artifact-pygeodiff-*
+          merge-multiple: true
+          delete-merged: true
 
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
           name: artifact
           path: pygeodiff-binaries
@@ -169,7 +180,9 @@ jobs:
           cp qgis-mergin-plugin/LICENSE.txt output/Mergin/LICENSE
           (cd output && zip -r9 ../mergin.zip Mergin/)
 
-      - uses: actions/upload-artifact@v3
+
+
+      - uses: actions/upload-artifact@v4
         with:
           name: Mergin
           path: output/