Bump pytest from 8.0.0 to 9.0.3 in /.tools/readmes (#7850)

Author: dependabot[bot]

.tools/readmes/requirements_freeze.txt

@@ -20,7 +20,7 @@ pluggy==1.5.0
 pycodestyle==2.11.1
 pyflakes==3.1.0
 Pygments==2.19.1
-pytest==8.0.0
+pytest==9.0.3
 PyYAML==6.0.1
 requests==2.33.0
 rich==13.9.4