Bump pyright from 1.1.400 to 1.1.403

Bumps [pyright](https://github.com/RobertCraigie/pyright-python) from 1.1.400 to 1.1.403.
- [Release notes](https://github.com/RobertCraigie/pyright-python/releases)
- [Commits](RobertCraigie/pyright-python@v1.1.400...v1.1.403)

---
updated-dependencies:
- dependency-name: pyright
  dependency-version: 1.1.403
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pyproject.toml

@@ -103,7 +103,7 @@ lint = [
     "types-Pygments==2.19.0.20250715",
     "types-requests==2.32.4.20250611",  # align with requests
     "types-urllib3==1.26.25.14",
-    "pyright==1.1.400",
+    "pyright==1.1.403",
     "pytest>=8.0",
     "pypi-attestations==0.0.27",
     "betterproto==2.0.0b6",
@@ -160,7 +160,7 @@ translations = [
 types = [
     "mypy==1.17.1",
     "pyrefly",
-    "pyright==1.1.400",
+    "pyright==1.1.403",
     { include-group = "type-stubs" },
 ]
 type-stubs = [