[BUILD] mail_post_defer: mark as rebel

mail_post_defer breaks tests for mail_tracking, so it's better to split it.

.copier-answers.yml

@@ -15,7 +15,8 @@ odoo_test_flavor: Both
 odoo_version: 16.0
 org_name: Odoo Community Association (OCA)
 org_slug: OCA
-rebel_module_groups: []
+rebel_module_groups:
+- mail_post_defer
 repo_description: '{''TODO'': ''add repo description.''}'
 repo_name: social
 repo_slug: social

.github/workflows/test.yml

@@ -36,8 +36,17 @@ jobs:
       matrix:
         include:
           - container: ghcr.io/oca/oca-ci/py3.10-odoo16.0:latest
+            include: "mail_post_defer"
             name: test with Odoo
           - container: ghcr.io/oca/oca-ci/py3.10-ocb16.0:latest
+            include: "mail_post_defer"
+            name: test with OCB
+            makepot: "true"
+          - container: ghcr.io/oca/oca-ci/py3.10-odoo16.0:latest
+            exclude: "mail_post_defer"
+            name: test with Odoo
+          - container: ghcr.io/oca/oca-ci/py3.10-ocb16.0:latest
+            exclude: "mail_post_defer"
             name: test with OCB
             makepot: "true"
     services:
@@ -49,6 +58,9 @@ jobs:
           POSTGRES_DB: odoo
         ports:
           - 5432:5432
+    env:
+      INCLUDE: "${{ matrix.include }}"
+      EXCLUDE: "${{ matrix.exclude }}"
     steps:
       - uses: actions/checkout@v3
         with: