fix: upgrade pandas to 2.1.4

[dbrattli]

Upgrade Pandas to 2.1.4. This release includes some compability fixes that migth ease the transistion from 2.0 to 2.1. Ref: pandas-dev/pandas#55137

Description

Motivation and Context

Running all existing tests

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• Refactor (non-breaking change which improves implementation)
• Performance (non-breaking change which improves performance. Please add associated performance test and results)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Non-functional change (xml comments/documentation/etc)

Contributor Checklist:

• My code follows the code style of this project.
• I have added an example of my new feature and included it in the documentation.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.
• My Pull Request name follows the naming convention fix: <description>, feat: <description>, etc.

Reviewer Checklist for Charts compliant functions:

• The docstrings of the new function follow the contributing guidelines.
• The new function is professionally documented
• The new function and associated scripts are covered by one or more unit tests and code coverage did not decrease.
• The new function is accompanied by an example and it is included in the Gallery of Charts.
• The new function is reviewed in Chromatic. Access the storybook build results url and comment, approve or deny.
• All function inputs, arguments, and outputs have a supported data type and have human readable names.
• No code language is included in the description of the function or parameters (e.g use "polynomial order" instead of "poly_order")

[github-actions]

Unit Test Results

0 tests  ±0   0 ✔️ ±0   0s ⏱️ ±0s
0 suites ±0   0 💤 ±0 
0 files   ±0   0 ❌ ±0 

Results for commit b7a9d1c. ± Comparison against base commit b0ba493.

♻️ This comment has been updated with latest results.

[codecov]

Codecov Report

Merging #69 (b7a9d1c) into main (b0ba493) will not change coverage.
The diff coverage is n/a.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #69   +/-   ##
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  Coverage   91.22%   91.22%           
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  Files         103      103           
  Lines        3770     3770           
  Branches      815      815           
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  Hits         3439     3439           
  Misses        207      207           
  Partials      124      124