Remove all package data after tests (#22984)

Fixes #21020

---------

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: zeripath <art27@cantab.net>

tests/integration/api_packages_conan_test.go

@@ -205,6 +205,7 @@ func uploadConanPackageV2(t *testing.T, baseURL, token, name, version, user, cha
 
 func TestPackageConan(t *testing.T) {
 	defer tests.PrepareTestEnv(t)()
+
 	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2})
 
 	name := "ConanPackage"