Bump eventlet from 0.30.2 to 0.31.0

Bumps [eventlet](https://github.com/eventlet/eventlet) from 0.30.2 to 0.31.0.
- [Release notes](https://github.com/eventlet/eventlet/releases)
- [Changelog](https://github.com/eventlet/eventlet/blob/master/NEWS)
- [Commits](eventlet/eventlet@v0.30.2...v0.31.0)

Signed-off-by: dependabot[bot] <[email protected]>

requirements.in

@@ -16,7 +16,7 @@ pyexcel-xlsx==0.6.0
 pyexcel-ods3==0.6.0
 pytz==2021.1
 gunicorn==20.1.0
-eventlet==0.30.2 # pyup: ignore
+eventlet==0.31.0 # pyup: ignore
 notifications-python-client==6.1.0
 Shapely==1.7.1
 rtreelib==0.2.0

requirements.txt

@@ -49,7 +49,7 @@ docutils==0.15.2
     # via awscli
 et-xmlfile==1.1.0
     # via openpyxl
-eventlet==0.30.2 # pyup: ignore
+eventlet==0.31.0
     # via -r requirements.in
 fido2==0.9.1
     # via -r requirements.in
@@ -85,8 +85,6 @@ humanize==3.6.0
     # via -r requirements.in
 idna==2.10
     # via requests
-importlib-metadata==4.4.0
-    # via click
 itsdangerous==1.1.0
     # via
     #   -r requirements.in
@@ -208,8 +206,6 @@ statsd==3.3.0
     # via notifications-utils
 texttable==1.6.3
     # via pyexcel
-typing-extensions==3.10.0.0
-    # via importlib-metadata
 urllib3==1.26.5
     # via
     #   botocore
@@ -224,8 +220,6 @@ xlrd==1.2.0
     # via pyexcel-xls
 xlwt==1.3.0
     # via pyexcel-xls
-zipp==3.4.1
-    # via importlib-metadata
 
 # The following packages are considered to be unsafe in a requirements file:
 # setuptools