Update parallel artifact creation for v4

Author: arik-so

.github/workflows/build-xcframework-parallel-archives.yml

@@ -63,7 +63,7 @@ jobs:
             -   name: Upload xcarchive
                 uses: actions/upload-artifact@v4
                 with:
-                    name: bindings
+                    name: bindings-${{ matrix.configuration['human_readable_platform'] }}
                     path: ./bindings/**/bin/release/${{ matrix.configuration['human_readable_platform'] }}/${{ matrix.configuration['human_readable_platform'] }}.xcarchive
 
     generate:
@@ -81,7 +81,9 @@ jobs:
             -   name: Checkout
                 uses: actions/checkout@v3
             -   name: Download xcarchives
-                uses: actions/download-artifact@v3
+                uses: actions/download-artifact@v4
+                with:
+                    merge-multiple: true
             -   name: Generate xcframework
                 shell: bash
                 run:

.github/workflows/build-xcframework-parallel-libldk.yml

@@ -67,7 +67,7 @@ jobs:
             -   name: Upload binary
                 uses: actions/upload-artifact@v4
                 with:
-                    name: bindings
+                    name: bindings-${{ matrix.configuration['human_readable_platform'] }}
                     path: |
                         ./bindings/**/artifacts/ldk-c-bindings/lightning-c-bindings/include/*.h
                         ./bindings/**/artifacts/ldk-c-bindings/ldk-net/ldk_net.*
@@ -87,7 +87,9 @@ jobs:
             -   name: Checkout
                 uses: actions/checkout@v3
             -   name: Download libldks
-                uses: actions/download-artifact@v3
+                uses: actions/download-artifact@v4
+                with:
+                    merge-multiple: true
             -   name: Generate Swift Bindings
                 shell: bash
                 run: |