Update wallet mac runner

Author: benedettadavico

.github/workflows/publish-nym-wallet-macos.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        platform: [macos-15-arm64]
+        platform: [macos-15]
     runs-on: ${{ matrix.platform }}
 
     outputs: