Bump pandas from 2.1.1 to 2.1.4

Bumps [pandas](https://github.com/pandas-dev/pandas) from 2.1.1 to 2.1.4.
- [Release notes](https://github.com/pandas-dev/pandas/releases)
- [Commits](pandas-dev/pandas@v2.1.1...v2.1.4)

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

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

requirements.dev.txt

@@ -45,6 +45,10 @@ cycler==0.11.0
     # via matplotlib
 distlib==0.3.7
     # via virtualenv
+exceptiongroup==1.2.0
+    # via
+    #   cattrs
+    #   pytest
 filelock==3.12.4
     # via virtualenv
 fiona==1.9.4.post1
@@ -89,7 +93,7 @@ packaging==23.1
     #   matplotlib
     #   plotly
     #   pytest
-pandas==2.1.1
+pandas==2.1.4
     # via
     #   -r requirements.dev.in
     #   country-converter
@@ -151,6 +155,17 @@ six==1.16.0
     #   url-normalize
 tenacity==8.2.3
     # via plotly
+tomli==2.0.1
+    # via
+    #   black
+    #   build
+    #   pip-tools
+    #   pyproject-hooks
+    #   pytest
+typing-extensions==4.9.0
+    # via
+    #   black
+    #   cattrs
 tzdata==2023.3
     # via pandas
 unidecode==1.3.7