[relay] Update GO version and QUIC version (#4736)

- Go 1.25.5
- QUIC 0.55.0

client/ssh/server/jwt_test.go

@@ -602,12 +602,13 @@ func TestJWTAuthentication(t *testing.T) {
 			require.NoError(t, err)
 
 			var authMethods []cryptossh.AuthMethod
-			if tc.token == "valid" {
+			switch tc.token {
+			case "valid":
 				token := generateValidJWT(t, privateKey, issuer, audience)
 				authMethods = []cryptossh.AuthMethod{
 					cryptossh.Password(token),
 				}
-			} else if tc.token == "invalid" {
+			case "invalid":
 				invalidToken := "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.invalid"
 				authMethods = []cryptossh.AuthMethod{
 					cryptossh.Password(invalidToken),