fix: use correct content type for macOS binary signing

Use application/x-mac-app-bin instead of invalid content-type

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: Aleksandr Slapoguzov

.github/workflows/release.yml

@@ -62,11 +62,11 @@ jobs:
           SERVICE_ACCOUNT_TOKEN: ${{ secrets.SERVICE_ACCOUNT_TOKEN }}
         run: |
           ./codesign-client-linux-amd64 \
-            -denoted-content-type="content-type=application/x-mach-binary" \
+            -denoted-content-type="application/x-mac-app-bin" \
             -extensions "mac_codesign_force=true,mac_codesign_options=runtime" \
             dist/bin/codex-acp-x64-darwin
           ./codesign-client-linux-amd64 \
-            -denoted-content-type="content-type=application/x-mach-binary" \
+            -denoted-content-type="application/x-mac-app-bin" \
             -extensions "mac_codesign_force=true,mac_codesign_options=runtime" \
             dist/bin/codex-acp-arm64-darwin