fix(deps): pin markupsafe==2.1.5 for CKAN 2.11 compatibility

CKAN 2.11.4 requires markupsafe==2.1.5; the open '>=2.0.1' bound let pipenv resolve 3.0.3, which makes dominate double-escape Markup labels and renders Font Awesome icons as escaped HTML in nav menus/buttons. Pin to 2.1.5 and re-lock.

Author: A-Souhei

Pipfile

@@ -93,7 +93,7 @@ setuptools = ">=65.0.0"
 raven = "==6.10.0"
 tableschema = "==1.20.2"
 frictionless = ">=5.0.0,<6.0.0"
-markupsafe = ">=2.0.1"
+markupsafe = "==2.1.5"
 
 [dev-packages]
 # CKAN 2.11.4 dev dependencies