Bump pytest-selenium from 1.15.1 to 1.16.0 in /requirements

Bumps [pytest-selenium](https://github.com/pytest-dev/pytest-selenium) from 1.15.1 to 1.16.0.
- [Release notes](https://github.com/pytest-dev/pytest-selenium/releases)
- [Changelog](https://github.com/pytest-dev/pytest-selenium/blob/master/docs/news.rst)
- [Commits](pytest-dev/pytest-selenium@v1.15.1...v1.16.0)

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

Author: dependabot-support

requirements/dev.txt

@@ -18,9 +18,9 @@ django-extensions==2.1.5 \
     --hash=sha256:6fcedb2ea660c9dbf9ac59441721ffdd4ab5b753fbd6159c3e28f391a65bab46 \
     --hash=sha256:a607459e5fa8c579a672131b63366fa52fab80adb2a862d362f5fb48cd2d2cac
 
-pytest-selenium==1.15.1 \
-    --hash=sha256:0f5c63cec610bf6e0ef2b8f5095afc024d5dedb4a67af2a846c73c84654b6b2e \
-    --hash=sha256:798684c72b6dd3c70768903813e6055938a30049de28809882428feb5db9033e
+pytest-selenium==1.16.0 \
+    --hash=sha256:18c5db66512efcf6db9e32cfe8dcd0b69ef11ac1e8b9a4ce8a1b4813e6c73c9a \
+    --hash=sha256:c4d5a73d501f9fb3afb70e781f6fc2106a7b5f64387ed449b15eb1df61fa7915
 
 PyPOM==2.2.0 \
     --hash=sha256:4bdd57fceb72d7e6a3645cf6c9322f490d9cfb5d777eac2c851a3b658b813939 \