build(deps-dev): update requests-mock requirement

Updates the requirements on [requests-mock](https://github.com/jamielennox/requests-mock) to permit the latest version.
- [Release notes](https://github.com/jamielennox/requests-mock/releases)
- [Commits](jamielennox/requests-mock@1.11.0...1.12.0)

---
updated-dependencies:
- dependency-name: requests-mock
  dependency-type: direct:production
...

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

pyproject.toml

@@ -52,7 +52,7 @@ dev = [
     "pytest-recording~=0.13",
     "pytest~=8.0",
     "recommonmark~=0.7.1",
-    "requests-mock~=1.11.0",
+    "requests-mock~=1.12",
     "ruff==0.3.4",
     "tomli~=2.0; python_version<'3.11'",
     "types-python-dateutil>=2.8.19,<2.10.0",