Sign native macOS binaries so that they can be embedded in macOS desktop apps

My project https://github.com/ylexus/jiotty-photos-uploader uses https://github.com/google/java-photoslibrary which transitively depends on conscrypt jars. When I use openjdk jpackage utility to create a distributable package (.dmg in case of macOS), it fails to get notarized by Apple with these errors:
```
{
"severity": "error",
"code": null,
"path": "Jiotty_Photos_Uploader-2.0.3.dmg/Jiotty Photos Uploader.app/Contents/app/conscrypt-openjdk-uber-2.5.1.jar/META-INF/native/libconscrypt_openjdk_jni-osx-x86_64.dylib",
"message": "The binary is not signed.",
"docUrl": null,
"architecture": "x86_64"
},
{
"severity": "error",
"code": null,
"path": "Jiotty_Photos_Uploader-2.0.3.dmg/Jiotty Photos Uploader.app/Contents/app/conscrypt-openjdk-uber-2.5.1.jar/META-INF/native/libconscrypt_openjdk_jni-osx-x86_64.dylib",
"message": "The signature does not include a secure timestamp.",
"docUrl": null,
"architecture": "x86_64"
},
```

It makes jpackage tool's sign functionality unusable as is. I have to apply complex workarounds during build time like unpacking conscrypt jar, signing binaries, re-packing, and re-packaging.

it would be very convenient if conscrypt jars contained native libraries that were properly signed by Apple in the first place.