Update requirements

requirements.txt

-alembic==1.3.1
-amqp==2.5.2
-appdirs==1.4.3
+alembic==1.4.3
+amqp==5.0.2
+appdirs==1.4.4
 APScheduler==3.6.3
 argh==0.26.2
 bandit==1.6.2
-billiard==3.6.1.0
+billiard==3.6.3.0
 blessings==1.7
 blinker==1.4
-bpython==0.18
-caldav==0.6.2
-celery==4.3.0
-certifi==2019.11.28
+bpython==0.20.1
+caldav==0.7.1
+celery==5.0.2
+certifi==2020.11.8
 chardet==3.0.4
-Click==7.0
-colorama==0.4.3
-coverage==4.5.4
-curtsies==0.3.0
-dnspython==1.16.0
+click==7.1.2
+click-didyoumean==0.0.3
+click-repl==0.1.6
+colorama==0.4.4
+coverage==5.3
+curtsies==0.3.4
+dnspython==2.0.0
 enum-compat==0.0.3
 etherpad-lite==0.5
-eventlet==0.25.1
+eventlet==0.29.1
 feedgen==0.9.0
-Flask==1.1.1
-Flask-Migrate==2.5.2
-Flask-SQLAlchemy==2.4.1
-Flask-WTF==0.14.2
-fuzzywuzzy==0.17.0
-gitdb2==2.0.6
-GitPython==3.0.5
-greenlet==0.4.15
-icalendar==4.0.4
-idna==2.8
+Flask==1.1.2
+Flask-Migrate==2.5.3
+Flask-SQLAlchemy==2.4.4
+Flask-WTF==0.14.3
+fuzzywuzzy==0.18.0
+gitdb==4.0.5
+gitdb2==4.0.2
+GitPython==3.1.11
+greenlet==0.4.17
+icalendar==4.0.7
+idna==2.10
 itsdangerous==1.1.0
-Jinja2==2.10.3
-kombu==4.6.7
-ldap3==2.6.1
-lxml==4.4.2
-Mako==1.1.0
-mando==0.6.4
+Jinja2==2.11.2
+kombu==5.0.2
+ldap3==2.8.1
+lxml==4.6.1
+Mako==1.1.3
+mando==0.7.0
 MarkupSafe==1.1.1
 mccabe==0.6.1
 monotonic==1.5
 nose==1.3.7
-packaging==19.2
+packaging==20.4
 pathtools==0.1.2
-pbr==5.4.4
-psycopg2-binary==2.8.4
+pbr==5.5.1
+prompt-toolkit==3.0.8
+psycopg2-binary==2.8.6
 pyasn1==0.4.8
-pyasn1-modules==0.2.7
-pycodestyle==2.5.0
-Pygments==2.5.2
+pyasn1-modules==0.2.8
+pycodestyle==2.6.0
+Pygments==2.7.2
 pyldap==3.0.0.post1
-pyparsing==2.4.5
+pyparsing==2.4.7
 python-dateutil==2.8.1
-python-dotenv==0.10.3
+python-dotenv==0.15.0
 python-editor==1.0.4
-python-engineio==3.11.0
-python-ldap==3.2.0
+python-engineio==3.13.2
+python-ldap==3.3.1
 python-Levenshtein==0.12.0
 python-pam==1.8.4
-pytz==2019.3
-PyYAML==5.2
+pytz==2020.4
+PyYAML==5.3.1
 raven==6.10.0
-redis==3.3.11
-regex==2019.12.9
-requests==2.22.0
-six==1.13.0
-smmap2==2.0.5
-SQLAlchemy==1.3.11
-SQLAlchemy-Utils==0.36.0
-stevedore==1.31.0
-typing==3.7.4.1
-tzlocal==2.0.0
-urllib3==1.25.7
+redis==3.5.3
+regex==2020.11.13
+requests==2.25.0
+six==1.15.0
+smmap==3.0.4
+smmap2==3.0.1
+SQLAlchemy==1.3.20
+SQLAlchemy-Utils==0.36.8
+stevedore==3.2.2
+typing==3.7.4.3
+tzlocal==2.1
+urllib3==1.26.2
 uwsgidecorators==1.1.0
-vine==1.3.0
+vine==5.0.0
 vobject==0.9.6.1
-watchdog==0.9.0
-wcwidth==0.1.7
-Werkzeug==0.16.0
-WTForms==2.2.1
+watchdog==0.10.3
+wcwidth==0.2.5
+Werkzeug==1.0.1
+WTForms==2.3.3