fix(go): fix go client (#6561)

* add jq to flake

Signed-off-by: pyranota <pyra@duck.com>

* make build.sh compatible with non-FHS complient systems

Signed-off-by: pyranota <pyra@duck.com>

* fix client

Signed-off-by: pyranota <pyra@duck.com>

---------

Signed-off-by: pyranota <pyra@duck.com>

flake.nix

@@ -124,6 +124,7 @@
             sqlx-cli
             sccache
             nsjail
+            jq
 
             # Python
             flock

go-client/build.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 
 mkdir openapi

go-client/windmill.go

@@ -43,7 +43,7 @@ func GetVariable(path string) (string, error) {
 	if err != nil {
 		return "", err
 	}
-	res, err := client.Client.GetVariableValueWithResponse(context.Background(), client.Workspace, path)
+	res, err := client.Client.GetVariableValueWithResponse(context.Background(), client.Workspace, path, &api.GetVariableValueParams{})
 	if err != nil {
 		return "", err
 	}