Lock Django to 3.x

Some Django 4.x deprecations/removals may affect Baby Buddy. And the Easy
Thumbnail dependency does not support Django 4.x yet.

Pipfile

@@ -5,7 +5,7 @@ url = "https://pypi.python.org/simple"
 [packages]
 boto3 = "*"
 dj-database-url = "*"
-django = "*"
+django = "==3.*"
 django-axes = "*"
 django-filter = "*"
 django-import-export = "*"

requirements.txt

@@ -7,20 +7,20 @@
 
 -i https://pypi.python.org/simple
 asgiref==3.4.1; python_version >= '3.6'
-boto3==1.20.23
+boto3==1.20.24
 botocore==1.23.24; python_version >= '3.6'
 cssselect2==0.4.1; python_version >= '3.6'
 defusedxml==0.7.1; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'
 diff-match-patch==20200713; python_version >= '2.7'
 dj-database-url==0.5.0
-django-axes==5.27.0
+django-axes==5.28.0
 django-filter==21.1
 django-import-export==2.7.0
-django-ipware==4.0.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4, 3.5'
+django-ipware==4.0.2; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4, 3.5'
 django-storages==1.12.3
 django-widget-tweaks==1.4.9
 django==3.2.10
-djangorestframework==3.13.0
+djangorestframework==3.13.1
 easy-thumbnails==2.8
 et-xmlfile==1.1.0; python_version >= '3.6'
 faker==10.0.0
@@ -39,7 +39,7 @@ pytz==2021.3
 pyyaml==6.0
 reportlab==3.6.3; python_version >= '3.6' and python_version < '4'
 s3transfer==0.5.0; python_version >= '3.6'
-setuptools==59.6.0; python_version >= '3.6'
+setuptools==59.7.0; python_version >= '3.7'
 six==1.16.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
 sqlparse==0.4.2; python_version >= '3.5'
 svglib==1.1.0; python_version >= '3'