tests: always pass env to test_program

tests/meson.build

@@ -3,7 +3,7 @@ env.set('APK', apk_exe.full_path())
 env.set('SRC', meson.current_source_dir())
 
 test_program = find_program('test-basic.sh')
-test_list = run_command(test_program, '--list', check: true).stdout().split('\n')
+test_list = run_command(test_program, '--list', check: true, env: env).stdout().split('\n')
 
 foreach test : test_list
 	test = test.strip()