Upgrade the upper version for django

Upgrade the version number to 1.4.2

setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = django-survey-and-report
-version = 1.4.1
+version = 1.4.2
 description = A django survey app that can export results as CSV or PDF using your native language.
 long_description = file: README.md
 long_description_content_type = text/markdown
@@ -36,7 +36,7 @@ classifiers =
 packages = find:
 include_package_data = True
 install_requires =
-    django>=2.2,<4.1
+    django>=2.2,<5
     django-bootstrap-form>=3.4
     django-tastypie>=0.14.2
     django-registration>=3.0