Bump responses from 0.16.0 to 0.18.0

Bumps [responses](https://github.com/getsentry/responses) from 0.16.0 to 0.18.0.
- [Release notes](https://github.com/getsentry/responses/releases)
- [Changelog](https://github.com/getsentry/responses/blob/master/CHANGES)
- [Commits](getsentry/responses@0.16.0...0.18.0)

---
updated-dependencies:
- dependency-name: responses
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

requirements/tests.txt

@@ -183,9 +183,9 @@ requests==2.27.1 \
     --hash=sha256:68d7c56fd5a8999887728ef304a6d12edc7be74f1cfa47714fc8b414525c9a61 \
     --hash=sha256:f22fa1e554c9ddfd16e6e41ac79759e17be9e492b3587efa038054674760e72d
     # via responses
-responses==0.16.0 \
-    --hash=sha256:a2e3aca2a8277e61257cd3b1c154b1dd0d782b1ae3d38b7fa37cbe3feb531791 \
-    --hash=sha256:f358ef75e8bf431b0aa203cc62625c3a1c80a600dbe9de91b944bf4e9c600b92
+responses==0.18.0 \
+    --hash=sha256:15c63ad16de13ee8e7182d99c9334f64fd81f1ee79f90748d527c28f7ca9dd51 \
+    --hash=sha256:380cad4c1c1dc942e5e8a8eaae0b4d4edf708f4f010db8b7bcfafad1fcd254ff
     # via -r requirements/tests.in
 selenium==3.141.0 \
     --hash=sha256:2d7131d7bc5a5b99a2d9b04aaf2612c411b03b8ca1b1ee8d3de5845a9be2cb3c \
@@ -198,7 +198,6 @@ six==1.16.0 \
     #   bok-choy
     #   fakeredis
     #   python-dateutil
-    #   responses
 sortedcontainers==2.4.0 \
     --hash=sha256:25caa5a06cc30b6b83d11423433f65d1f9d76c4c6a0c90e3379eaa43b9bfdb88 \
     --hash=sha256:a163dcaede0f1c021485e957a39245190e74249897e2ae4b2aa38595db237ee0