Update sphinx-autodoc-typehints requirement (#171)

Updates the requirements on [sphinx-autodoc-typehints](https://github.com/tox-dev/sphinx-autodoc-typehints) to permit the latest version.
- [Release notes](https://github.com/tox-dev/sphinx-autodoc-typehints/releases)
- [Changelog](https://github.com/tox-dev/sphinx-autodoc-typehints/blob/main/CHANGELOG.md)
- [Commits](tox-dev/sphinx-autodoc-typehints@1.24.0...2.5.0)

---
updated-dependencies:
- dependency-name: sphinx-autodoc-typehints
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pyproject.toml

@@ -39,7 +39,7 @@ cirq = ["cirq-core>=1.3.0,<1.5.0"]
 qasm3 = ["pyqasm>=0.0.1"]
 test = ["qbraid>=0.7.1,<0.9.0", "pytest", "pytest-cov", "autoqasm>=0.1.0"]
 lint = ["black[jupyter]", "isort", "pylint", "qbraid-cli>=0.8.7"]
-docs = ["pyqasm>=0.0.1", "sphinx>=7.3.7,<8.1.0", "sphinx-autodoc-typehints>=1.24,<2.5", "sphinx-rtd-theme>=2.0,<3.1", "docutils<0.22", "sphinx-copybutton"]
+docs = ["pyqasm>=0.0.1", "sphinx>=7.3.7,<8.1.0", "sphinx-autodoc-typehints>=1.24,<2.6", "sphinx-rtd-theme>=2.0,<3.1", "docutils<0.22", "sphinx-copybutton"]
 
 [tool.setuptools.dynamic]
 version = {attr = "qbraid_qir.__version__"}