chore(deps): update pytest requirement from ~=7.4.0 to ~=7.4.3

Updates the requirements on [pytest](https://github.com/pytest-dev/pytest) to permit the latest version.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@7.4.0...7.4.3)

---
updated-dependencies:
- dependency-name: pytest
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.txt

@@ -2,6 +2,6 @@ amazon.ion>=0.7.0,<=0.9.3   # pinned per GitHub issue #164
 boto3~=1.28.79
 botocore~=1.31.79
 ionhash~=1.2.1
-pytest~=7.4.0
+pytest~=7.4.3
 pytest-cov~=4.1.0
 pytest-subtests~=0.11.0