Bump utils to bring in changes to logging

Freezing the requirements changes the Werkzeug version to 0.16.0, which
requires a change in how we import an exception
(https://github.com/pallets/werkzeug/blob/master/CHANGES.rst#version-0160)

requirements.txt

@@ -31,32 +31,32 @@ awscli-cwlogs>=1.4,<1.5
 # Putting upgrade on hold due to v1.0.0 using sha512 instead of sha1 by default
 itsdangerous==0.24  # pyup: <1.0.0
 
-git+https://github.com/alphagov/notifications-utils.git@34.0.1#egg=notifications-utils==34.0.1
+git+https://github.com/alphagov/notifications-utils.git@36.1.0#egg=notifications-utils==36.1.0
 
 git+https://github.com/alphagov/boto.git@2.43.0-patch3#egg=boto==2.43.0-patch3
 
 ## The following requirements were added by pip freeze:
-alembic==1.1.0
+alembic==1.2.1
 amqp==1.4.9
 anyjson==0.3.3
-attrs==19.1.0
-awscli==1.16.231
+attrs==19.3.0
+awscli==1.16.263
 bcrypt==3.1.7
 billiard==3.3.0.23
 bleach==3.1.0
-boto3==1.6.16
-botocore==1.12.221
-certifi==2019.6.16
+boto3==1.9.221
+botocore==1.12.253
+certifi==2019.9.11
 chardet==3.0.4
 Click==7.0
-colorama==0.3.9
+colorama==0.4.1
 dnspython==1.16.0
 docutils==0.15.2
 flask-redis==0.4.0
-future==0.17.1
+future==0.18.1
 greenlet==0.4.15
 idna==2.8
-Jinja2==2.10.1
+Jinja2==2.10.3
 jmespath==0.9.4
 kombu==3.0.37
 Mako==1.1.0
@@ -64,7 +64,7 @@ MarkupSafe==1.1.1
 mistune==0.8.4
 monotonic==1.5
 orderedset==2.0.1
-phonenumbers==8.10.13
+phonenumbers==8.10.17
 pyasn1==0.4.7
 pycparser==2.19
 PyPDF2==1.26.0
@@ -72,15 +72,15 @@ pyrsistent==0.15.4
 python-dateutil==2.8.0
 python-editor==1.0.4
 python-json-logger==0.1.11
-pytz==2019.2
-PyYAML==4.2b1
-redis==3.3.8
+pytz==2019.3
+PyYAML==5.1.2
+redis==3.3.11
 requests==2.22.0
 rsa==3.4.2
 s3transfer==0.2.1
 six==1.12.0
 smartypants==2.0.1
 statsd==3.3.0
-urllib3==1.25.3
+urllib3==1.25.6
 webencodings==0.5.1
-Werkzeug==0.15.5
+Werkzeug==0.16.0