add Mint System Contract Repo

versions/17.0/.gitmodules

@@ -128,7 +128,8 @@
 	path = addons/partner_contact
 	url = git@github.com:Mint-System/Odoo-Apps-Partner-Contact.git
 	branch = 17.0
-[submodule "oca/openupgrade"]
-	path = oca/openupgrade
-	url = git@github.com:OCA/OpenUpgrade.git
-    branch = 17.0
+
+[submodule "addons/contract"]
+	path = addons/contract
+	url = git@github.com:Mint-System/Odoo-Apps-Contract.git
+	branch = 17.0