1.0.216/217 nightly not work with pageant 0.82

[Remonli]

Hi，

The new russh backend does not work with pageant 0.82, I was thinking it's about ed25519 key , but it's not , the nightly 1.0.217 works properly same key with win11 openssh key agent，here is the log with pageant.

https://github.com/Eugeny/tabby/issues/10117#issuecomment-2563008869

debug: Setting language to
debug: Checking for updates
info: CLI arguments received: {"argv":{"$0":"Tabby.exe","_":[]},"cwd":"C:\\Users\\user\\Desktop\\tabby","secondInstance":false}
error: [object Object]
debug: Setting language to
debug: Setting language to
debug: Resizing to 145x33
info: Host key fingerprint:
info:  ecdsa-sha2-nistp256  bJuuLht9InXbaAoun88J0Bf2FUjsHWR17OY3/hRJJjc 
info: Host key verified