Bump responses from 0.10.9 to 0.10.12 in /requirements (#6132)

Bumps [responses](https://github.com/getsentry/responses) from 0.10.9 to 0.10.12.
- [Release notes](https://github.com/getsentry/responses/releases)
- [Changelog](https://github.com/getsentry/responses/blob/master/CHANGES)
- [Commits](https://github.com/getsentry/responses/compare/0.10.9...0.10.12)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

requirements/dev.txt

@@ -20,9 +20,9 @@ django-debug-toolbar==2.2 \
 
 mock==4.0.1 --hash=sha256:5e48d216809f6f393987ed56920305d8f3c647e6ed35407c1ff2ecb88a9e1151 --hash=sha256:2a572b715f09dd2f0a583d8aeb5bb67d7ed7a8fd31d193cf1227a99c16a67bc3
 
-responses==0.10.9 \
-    --hash=sha256:515fd7c024097e5da76e9c4cf719083d181f1c3ddc09c2e0e49284ce863dd263 \
-    --hash=sha256:8ce8cb4e7e1ad89336f8865af152e0563d2e7f0e0b86d2cf75f015f819409243
+responses==0.10.12 \
+    --hash=sha256:0474ce3c897fbcc1aef286117c93499882d5c440f06a805947e4b1cb5ab3d474 \
+    --hash=sha256:f83613479a021e233e82d52ffb3e2e0e2836d24b0cc88a0fa31978789f78d0e5
 
 django-extensions==2.2.8 \
     --hash=sha256:1a03c4e8bade575f8c2be6c76456f8a2be3f9b02ab9f47d3535afa9562dc0493 \