fix: Remove gh token on git source changes

src/routes/applications/[id]/configuration/repository.svelte

@@ -19,10 +19,13 @@
 
 <script lang="ts">
 	import { t } from '$lib/translations';
+	import { gitTokens } from '$lib/store';
 
 	export let application;
 	export let appId;
 
+	$gitTokens.githubToken = null;
+
 	import GithubRepositories from './_GithubRepositories.svelte';
 	import GitlabRepositories from './_GitlabRepositories.svelte';
 </script>