use upstream hugo-cloak-email which implemented custom changes

.gitmodules

@@ -1,3 +1,3 @@
 [submodule "themes/hugo-cloak-email"]
 	path = themes/hugo-cloak-email
-	url = https://github.com/mxmehl/hugo-cloak-email.git
+	url = https://github.com/martignoni/hugo-cloak-email.git

content/contact.md

@@ -5,7 +5,7 @@ page: true
 
 Email FSFE: {{< cloakemail address="max.mehl@fsfe.org" >}}
 Email private: {{< cloakemail address="mail@mehl.mx" >}}
-XMPP: {{< cloakemail address="max.mehl@jabber.fsfe.org" href="xmpp" >}}
+XMPP: {{< cloakemail address="max.mehl@jabber.fsfe.org" protocol="xmpp" >}}
 
 Mastodon: [@mxmehl@mastodon.social](https://mastodon.social/@mxmehl)
 Twitter: [@mxmehl](https://twitter.com/mxmehl)

themes/hugo-cloak-email

@@ -1 +1 @@
-Subproject commit 9007a1be601590c63629bf81ff2ac01833ed2a82
+Subproject commit e62294f6bbf9198a7c12485cc663e4141d26e149