Bump pillow from 4.3.0 to 8.1.1

requirements.txt

@@ -5,25 +5,82 @@
 #    pip-compile --output-file requirements.txt requirements.in
 #
 -e git+https://github.com/wagtail/wagtail.git@master#egg=wagtail-2.0a0
-beautifulsoup4==4.6.0
-certifi==2018.1.18        # via requests
-chardet==3.0.4            # via requests
-click==6.7                # via pip-tools
-django-modelcluster==4.0
-django-taggit==0.22.2
+    # via -r requirements.in
+anyascii==0.1.7
+    # via wagtail
+asgiref==3.3.1
+    # via django
+beautifulsoup4==4.8.2
+    # via wagtail
+certifi==2018.1.18
+    # via requests
+chardet==3.0.4
+    # via requests
+click==6.7
+    # via pip-tools
+django-filter==2.4.0
+    # via wagtail
+django-modelcluster==5.1
+    # via wagtail
+django-taggit==1.3.0
+    # via wagtail
 django-treebeard==4.2.0
-django==2.0.1
-djangorestframework==3.7.7
-first==2.0.1              # via pip-tools
+    # via wagtail
+django==3.1.7
+    # via
+    #   -r requirements.in
+    #   django-filter
+    #   django-taggit
+    #   django-treebeard
+    #   djangorestframework
+    #   wagtail
+djangorestframework==3.12.2
+    # via wagtail
+draftjs-exporter==2.1.7
+    # via wagtail
+et-xmlfile==1.0.1
+    # via openpyxl
+first==2.0.1
+    # via pip-tools
 html5lib==0.999999999
-idna==2.6                 # via requests
-olefile==0.44             # via pillow
-pillow==4.3.0
+    # via wagtail
+idna==2.6
+    # via requests
+l18n==2020.6.1
+    # via wagtail
+openpyxl==3.0.7
+    # via tablib
+pillow==8.1.1
+    # via wagtail
 pip-tools==1.11.0
-pytz==2017.3              # via django, django-modelcluster
+    # via -r requirements.in
+pytz==2021.1
+    # via
+    #   django
+    #   django-modelcluster
+    #   l18n
 requests==2.18.4
-six==1.11.0               # via html5lib, pip-tools
-unidecode==0.4.21
-urllib3==1.22             # via requests
-webencodings==0.5.1       # via html5lib
-willow==1.1
+    # via wagtail
+six==1.11.0
+    # via
+    #   html5lib
+    #   l18n
+    #   pip-tools
+soupsieve==2.2
+    # via beautifulsoup4
+sqlparse==0.4.1
+    # via django
+tablib[xls,xlsx]==3.0.0
+    # via wagtail
+urllib3==1.22
+    # via requests
+webencodings==0.5.1
+    # via html5lib
+willow==1.4
+    # via wagtail
+xlrd==2.0.1
+    # via tablib
+xlsxwriter==1.3.7
+    # via wagtail
+xlwt==1.3.0
+    # via tablib