build(deps-dev): update coverage requirement from >=7.0 to >=7.14.0

Updates the requirements on [coverage](https://github.com/coveragepy/coveragepy) to permit the latest version.
- [Release notes](https://github.com/coveragepy/coveragepy/releases)
- [Changelog](https://github.com/coveragepy/coveragepy/blob/main/CHANGES.rst)
- [Commits](coveragepy/coveragepy@7.0.0...7.14.0)

---
updated-dependencies:
- dependency-name: coverage
  dependency-version: 7.14.0
  dependency-type: direct:development
...

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

Author: dependabot[bot]

Pipfile

@@ -14,7 +14,7 @@ pytest-postgresql = {path = ".", editable = true}
 [dev-packages]
 towncrier = "==25.8.0"
 psycopg-binary = {version = "==3.3.4", markers="implementation_name == 'cpython'"}
-coverage = ">=7.0"
+coverage = ">=7.14.0"
 pytest-xdist = "==3.8.0"
 mock = "==5.2.0"
 mypy = {version = "==2.1.0", markers="implementation_name == 'cpython'"}