Bump pandas from 2.1.2 to 2.1.3

Bumps [pandas](https://github.com/pandas-dev/pandas) from 2.1.2 to 2.1.3.
- [Release notes](https://github.com/pandas-dev/pandas/releases)
- [Commits](pandas-dev/pandas@v2.1.2...v2.1.3)

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

Signed-off-by: dependabot[bot] <support@github.com>

pyproject.toml

@@ -68,7 +68,7 @@ tests = [
     "matplotlib==3.8.2",
     "scipy==1.10.1; python_version < '3.9'", # to support python 3.8
     "scipy==1.11.3; python_version > '3.8'",
-    "pandas==2.1.2",
+    "pandas==2.1.3",
     "pyiges[full]==0.3.1",
     "pytest==7.4.3",
     "pytest-cov==4.1.0",
@@ -91,7 +91,7 @@ doc = [
     "jupyterlab>=3.2.8",
     "matplotlib==3.8.2",
     "numpydoc==1.6.0",
-    "pandas==2.1.2",
+    "pandas==2.1.3",
     "plotly==5.18.0",
     "pyiges[full]==0.3.1",
     "pypandoc==1.12",