update requirements.txt for security patches

requirements.txt

@@ -25,7 +25,7 @@ Cython==0.29.26
 decorator==5.1.1
 deepdish==0.3.7
 Deprecated==1.2.13
-Django==4.0.4
+Django==4.0.6
 django-celery-results==2.2.0
 django-extensions==3.1.5
 django-picklefield==3.0.1
@@ -54,7 +54,7 @@ ipython-genutils==0.2.0
 isodate==0.6.1
 jdcal==1.4.1
 kombu==5.2.3
-lxml==4.7.1
+lxml==4.9.1
 more-itertools==8.12.0
 msrest==0.6.21
 msrestazure==0.6.4
@@ -80,7 +80,7 @@ pyasn1-modules==0.2.8
 pycodestyle==2.8.0
 pycparser==2.21
 Pygments==2.11.2
-PyJWT==2.3.0
+PyJWT==2.4.0
 pyparsing==3.0.6
 pyproj==3.3.0
 python-dateutil==2.8.2