Bump loguru from 0.5.1 to 0.5.3 (#10)

Bumps [loguru](https://github.com/Delgan/loguru) from 0.5.1 to 0.5.3.
- [Release notes](https://github.com/Delgan/loguru/releases)
- [Changelog](https://github.com/Delgan/loguru/blob/master/CHANGELOG.rst)
- [Commits](Delgan/loguru@0.5.1...0.5.3)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements.txt

@@ -1,27 +1,28 @@
+-i https://pypi.tuna.tsinghua.edu.cn/simple/
 amqp==2.6.1
 asgiref==3.2.10
 billiard==3.6.3.0
 celery==4.4.7
-certifi==2020.6.20
+certifi==2020.12.5
 chardet==3.0.4
-Django==3.1
 django-celery-beat==2.0.0
 django-celery-results==1.2.1
 django-redis==4.12.1
-django-timezone-field==4.0
+django-timezone-field==4.1.1
+django==3.1
 idna==2.10
 itsdangerous==1.1.0
 kombu==4.6.11
-loguru==0.5.1
+loguru==0.5.3
 mysqlclient==2.0.1
-Pillow==7.2.0
+pillow==7.2.0
 python-crontab==2.5.1
 python-dateutil==2.8.1
-pytz==2020.1
+pytz==2021.1
 redis==3.5.3
 requests==2.24.0
 six==1.15.0
-sqlparse==0.3.1
-urllib3==1.25.10
-uWSGI==2.0.19.1
-vine==1.3.0
+sqlparse==0.4.1
+urllib3==1.25.11
+uwsgi==2.0.19.1
+vine==1.3.0