How to issue a code signing certificate with RSA4096bit

I would like to code sign an app or installer with an RSA 4096-bit code signing certificate.

I created a CSR using RSA4096bit and ECC in Mac Keychain Access, but I was unable to use that CSR to create a code signing certificate on the Apple Developer site.

How do I issue an RSA4096-bit or ECC code signing certificate?

How to issue a code signing certificate with RSA4096bit
 
 
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