Build(deps): Bump hypothesis in /dependencies/default

Bumps [hypothesis](https://github.com/HypothesisWorks/hypothesis) from 6.131.15 to 6.131.18.
- [Release notes](https://github.com/HypothesisWorks/hypothesis/releases)
- [Commits](HypothesisWorks/hypothesis@hypothesis-python-6.131.15...hypothesis-python-6.131.18)

---
updated-dependencies:
- dependency-name: hypothesis
  dependency-version: 6.131.18
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

dependencies/default/constraints.txt

@@ -1,7 +1,7 @@
 attrs==25.3.0
 coverage==7.8.0
 exceptiongroup==1.3.0
-hypothesis==6.131.15
+hypothesis==6.131.18
 iniconfig==2.1.0
 packaging==25.0
 pluggy==1.5.0