Update dependency django-bootstrap-datepicker-plus to v5.0.3

requirements.txt

@@ -8,7 +8,7 @@ djangorestframework==3.14.0
 django-simple-history==3.2.0
 django-registration-redux==2.11
 django-debug-toolbar==3.8.1
-django-bootstrap-datepicker-plus==5.0.2
+django-bootstrap-datepicker-plus==5.0.3
 django-tex==1.1.10
 django-csp==3.7
 django-compressor==4.1