Bump pytest from 7.1.2 to 7.1.3 in /requirements (torchgeo#752)

Bumps [pytest](https://github.com/pytest-dev/pytest) from 7.1.2 to 7.1.3.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@7.1.2...7.1.3)

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

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements/tests.txt

@@ -1,5 +1,5 @@
 # tests
 mypy==0.971
 nbmake==1.3.4
-pytest==7.1.2
+pytest==7.1.3
 pytest-cov==3.0.0