Fix package dependencies (#426)

* Relax constraint on dbc

* Bump version number to 2.1.1

Co-authored-by: delsim <dev@gibbsconsulting.ca>

Author: delsim

django_plotly_dash/version.py

@@ -23,4 +23,4 @@
 
 '''
 
-__version__ = "2.1.0"
+__version__ = "2.1.1"

setup.py

@@ -44,7 +44,7 @@
                         'dash>=2.0',
                         'dpd-components',
 
-                        'dash-bootstrap-components<1',
+                        'dash-bootstrap-components',
 
                         'channels<3.0',
                         'Django>=2.2,<4.0.0',