Fix gosec, govet, and errorlint linter errors

Co-authored-by: Junie <junie@jetbrains.com>

internal/grpcserver/auth.go

@@ -31,7 +31,7 @@ func (as *authServer) Logout(ctx context.Context, _ *pb.LogoutRequest) (*pb.Logo
 		Token:      token,
 	})
 	if err == nil {
-		as.s.auth.Logout(client)
+		_ = as.s.auth.Logout(client)
 	}
 	return &pb.LogoutResponse{}, nil
 }
@@ -53,4 +53,3 @@ func (as *authServer) TokenInfo(ctx context.Context, _ *pb.TokenInfoRequest) (*p
 		IsAdmin:  ti.IsAdmin,
 	}, nil
 }
-