Bump `coverage.py` to v7.3.0 in `ansible-test` (#81077)

changelogs/fragments/ansible-test-coverage-update.yml

@@ -0,0 +1,7 @@
+---
+
+minor_changes:
+- ansible-test — Python 3.8–3.12 will use ``coverage`` v7.3.0.
+- ansible-test — ``coverage`` v6.5.0 is to be used only under Python 3.7.
+
+...

test/lib/ansible_test/_data/requirements/ansible-test.txt

@@ -1,4 +1,5 @@
 # The test-constraints sanity test verifies this file, but changes must be made manually to keep it in up-to-date.
 virtualenv == 16.7.12 ; python_version < '3'
-coverage == 6.5.0 ; python_version >= '3.7' and python_version <= '3.12'
+coverage == 7.3.0 ; python_version >= '3.8' and python_version <= '3.12'
+coverage == 6.5.0 ; python_version >= '3.7' and python_version <= '3.7'
 coverage == 4.5.4 ; python_version >= '2.6' and python_version <= '3.6'

test/lib/ansible_test/_internal/coverage_util.py

@@ -69,7 +69,8 @@ class CoverageVersion:
 
 COVERAGE_VERSIONS = (
     # IMPORTANT: Keep this in sync with the ansible-test.txt requirements file.
-    CoverageVersion('6.5.0', 7, (3, 7), (3, 12)),
+    CoverageVersion('7.3.0', 7, (3, 8), (3, 12)),
+    CoverageVersion('6.5.0', 7, (3, 7), (3, 7)),
     CoverageVersion('4.5.4', 0, (2, 6), (3, 6)),
 )
 """