Bump eventlet from 0.30.2 to 0.31.0 in /st2actions

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] <support@github.com>

Author: dependabot[bot]

st2actions/requirements.txt

@@ -7,7 +7,7 @@
 # update the component requirements.txt
 apscheduler==3.7.0
 chardet<3.1.0
-eventlet==0.30.2
+eventlet==0.31.0
 git+https://github.com/StackStorm/logshipper.git@stackstorm_patched#egg=logshipper
 gitpython==3.1.15
 jinja2==2.11.3