Bump some Python dependencies (#1784)

* Bump lxml to 4.6.2
* Bump pip-compile to 5.4.0

development.txt

@@ -1,5 +1,5 @@
 -r requirements.txt
-pip-tools==5.3.1
+pip-tools==5.4.0
 pytest==5.4.2
 pytest-randomly==3.4.0
 coverage==5.1

requirements.in

@@ -24,7 +24,7 @@ marshmallow-sqlalchemy==0.17.0
 boto3==1.13.9
 marshmallow==2.20.2
 pydantic==1.5.1
-lxml==4.5.1
+lxml==4.6.2
 html5lib==1.0.1
 WTForms==2.3.1
 python-geoacumen==0.0.1

requirements.txt

@@ -34,7 +34,7 @@ itsdangerous==1.1.0       # via -r requirements.in, flask
 jinja2==2.11.2            # via -r requirements.in, flask
 jmespath==0.10.0          # via boto3, botocore
 jsonschema==3.2.0         # via flask-restx
-lxml==4.5.1               # via -r requirements.in
+lxml==4.6.2               # via -r requirements.in
 mako==1.1.3               # via alembic
 markupsafe==1.1.1         # via jinja2, mako, wtforms
 marshmallow-sqlalchemy==0.17.0  # via -r requirements.in