Update dependency pyright to v1.1.406 (#14826)

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

Author: renovate[bot]

requirements-tests.txt

@@ -1,7 +1,7 @@
 # Type checkers that we test our stubs against. These should always
 # be pinned to a specific version to make failure reproducible.
 mypy==1.18.2
-pyright==1.1.405
+pyright==1.1.406
 
 # Libraries used by our various scripts.
 aiohttp==3.12.15