Fix Testing sale.order action_cancel

By default sale_cancel_confirm overwrites the method
When there is a addon which is doing something afterwards
this results in an error in testing

.github/workflows/test.yml

@@ -36,10 +36,10 @@ jobs:
       matrix:
         include:
           - container: ghcr.io/oca/oca-ci/py3.6-odoo14.0:latest
-            include: "sale_order_line_sequence"
+            include: "sale_order_line_sequence,sale_cancel_confirm,sale_cancel_reason"
             name: test with Odoo
           - container: ghcr.io/oca/oca-ci/py3.6-ocb14.0:latest
-            include: "sale_order_line_sequence"
+            include: "sale_order_line_sequence,sale_cancel_confirm,sale_cancel_reason"
             name: test with OCB
             makepot: "true"
           - container: ghcr.io/oca/oca-ci/py3.6-odoo14.0:latest
@@ -50,10 +50,10 @@ jobs:
             name: test with OCB
             makepot: "true"
           - container: ghcr.io/oca/oca-ci/py3.6-odoo14.0:latest
-            exclude: "sale_order_line_sequence,sale_procurement_group_by_commitment_date"
+            exclude: "sale_order_line_sequence,sale_procurement_group_by_commitment_date,sale_cancel_confirm,sale_cancel_reason"
             name: test with Odoo
           - container: ghcr.io/oca/oca-ci/py3.6-ocb14.0:latest
-            exclude: "sale_order_line_sequence,sale_procurement_group_by_commitment_date"
+            exclude: "sale_order_line_sequence,sale_procurement_group_by_commitment_date,sale_cancel_confirm,sale_cancel_reason"
             name: test with OCB
             makepot: "true"
     services: