Update dependency ty to v0.0.91 (#16655)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

requirements-tests.txt

@@ -3,7 +3,7 @@
 mypy==2.4.0
 pyrefly==1.4.0
 pyright==1.1.414
-ty==0.0.90
+ty==0.0.91
 
 # Libraries used by our various scripts.
 aiohttp==3.14.4