Fix an unexpected server package build issue

I have no idea why TypeScript started complaining about the return value of cbor.encode() here, nothing in this branch touches the server package and the last CI run before this branch passed just fine. Return type is `Buffer | ArrayBufferView` so I went with `ArrayBuffer`.

1 files changed, 2 insertions, 2 deletions

diff --git a/packages/server/src/helpers/parseAuthenticatorData.ts b/packages/server/src/helpers/parseAuthenticatorData.ts
index 67f0e1a..cce6756 100644
--- a/packages/server/src/helpers/parseAuthenticatorData.ts
+++ b/packages/server/src/helpers/parseAuthenticatorData.ts
@@ -52,7 +52,7 @@ export default function parseAuthenticatorData(authData: Buffer): ParsedAuthenti
 
     // Decode the next CBOR item in the buffer, then re-encode it back to a Buffer
     const firstDecoded = decodeCborFirst(intBuffer);
-    const firstEncoded = Buffer.from(cbor.encode(firstDecoded));
+    const firstEncoded = Buffer.from(cbor.encode(firstDecoded) as ArrayBuffer);
     credentialPublicKey = firstEncoded;
     intBuffer = intBuffer.slice(firstEncoded.byteLength);
   }
@@ -60,7 +60,7 @@ export default function parseAuthenticatorData(authData: Buffer): ParsedAuthenti
   let extensionsDataBuffer: Buffer | undefined = undefined;
   if (flags.ed) {
     const firstDecoded = decodeCborFirst(intBuffer);
-    const firstEncoded = Buffer.from(cbor.encode(firstDecoded));
+    const firstEncoded = Buffer.from(cbor.encode(firstDecoded) as ArrayBuffer);
     extensionsDataBuffer = firstEncoded;
     intBuffer = intBuffer.slice(firstEncoded.byteLength);
   }