Update pytest requirement from ~=7.2 to ~=7.3 (#8562)

* Update pytest requirement from ~=7.2 to ~=7.3

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@7.2.0...7.3.0)

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

* Disable import-error as attrs is no longer a test dependency

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: Marc Mueller <30130371+cdce8p@users.noreply.github.com>

requirements_test_min.txt

@@ -3,7 +3,7 @@
 astroid==2.15.2  # Pinned to a specific version for tests
 typing-extensions~=4.5
 py~=1.11.0
-pytest~=7.2
+pytest~=7.3
 pytest-benchmark~=4.0
 pytest-timeout~=2.1
 towncrier~=22.12

tests/functional/r/regression/regression_4439.py

@@ -7,7 +7,7 @@
 
 from typing import Optional
 
-from attr import attrib, attrs
+from attr import attrib, attrs  # pylint: disable=import-error
 
 
 @attrs()