fix: cascade invitation on organization delete

Signed-off-by: manish-singh-bisht <mthefool218@gmail.com>
Signed-off-by: Bryan Frimin <bryan@getprobo.com>

pkg/coredata/migrations/20251205T154956Z.sql

@@ -0,0 +1,5 @@
+DELETE FROM authz_invitations 
+WHERE organization_id NOT IN (SELECT id FROM organizations);
+
+ALTER TABLE authz_invitations ADD CONSTRAINT authz_invitations_organization_id_fkey
+FOREIGN KEY (organization_id) REFERENCES organizations(id) ON DELETE CASCADE;