Add optional langcode to findOneByTag for Tokens

Problem/Motivation

Systems Tags used in Tokens fail when the Tagged node is not translated in the language CLI is accessed in. This means that generating URL-paths from CLI commands or during an import a NL-node can miss the System Tags Tokens when the Tagged node is not available in the default EN-language.

Steps to reproduce

Add a tokens to path settings, tag a node that does not have the default language as a translation and generate URL-paths in CLI

Proposed resolution

We need to add a Language Code to the function findOneByTag so we can pass it when getting the Token.

Remaining tasks

Test and apply patch