Merge pull request #534 from liangliangyy/dependabot/pip/pillow-9.0.0

Bump pillow from 8.4.0 to 9.0.0

requirements.txt

@@ -1,6 +1,6 @@
 coverage==6.2
 bleach==4.1.0
-Django==3.2.9
+Django==3.2.10
 django-compressor==3.1
 django-haystack==3.1.1
 django-ipware==4.0.2
@@ -13,7 +13,7 @@ jieba==0.42.1
 jsonpickle==2.0.0
 Markdown==3.3.6
 mysqlclient==2.1.0
-Pillow==8.4.0
+Pillow==9.0.0
 Pygments==2.10.0
 python-logstash==0.4.6
 python-memcached==1.59