Update makecpt baseline images for GMT 6.2.0rc1

[maxrjones]

Description of proposed changes

Address #1217

Reminders

• Run make format and make check to make sure the code follows the style guide.
• Add tests for new features or tests that would have caught the bug that you're fixing.
• Add new public functions/methods/classes to doc/api/index.rst.
• Write detailed docstrings for all functions/methods.
• If adding new functionality, add an example to docstrings or tutorials.

Slash Commands

You can write slash commands (/command) in the first line of a comment to perform
specific operations. Supported slash commands are:

• /format: automatically format and lint the code
• /test-gmt-dev: run full tests on the latest GMT development version

[github-actions]

Summary of changed images

This is an auto-generated report of images that have changed on the DVC remote

Status	Path
modified	pygmt/tests/baseline/test_makecpt_categorical.png
modified	pygmt/tests/baseline/test_makecpt_cyclic.png

Image diff(s)

Added images

Modified images

Path	Old	New
test_makecpt_categorical.png
test_makecpt_cyclic.png

Report last updated at commit ca3906e

[weiji14]

Actually, hold on, the makecpt tests are still failing https://github.com/GenericMappingTools/pygmt/pull/1231/checks?check_run_id=2414367157#step:11:687:

___________________________ test_makecpt_categorical ___________________________
Error: Image dimensions did not match.
  Expected shape: (122, 1432)
    /Users/runner/work/pygmt/pygmt/tmp-test-dir-with-unique-name/results/pygmt.tests.test_makecpt.test_makecpt_categorical/baseline.png
  Actual shape: (120, 1432)
    /Users/runner/work/pygmt/pygmt/tmp-test-dir-with-unique-name/results/pygmt.tests.test_makecpt.test_makecpt_categorical/result.png
_____________________________ test_makecpt_cyclic ______________________________
Error: Image dimensions did not match.
  Expected shape: (122, 1529)
    /Users/runner/work/pygmt/pygmt/tmp-test-dir-with-unique-name/results/pygmt.tests.test_makecpt.test_makecpt_cyclic/baseline.png
  Actual shape: (120, 1528)
    /Users/runner/work/pygmt/pygmt/tmp-test-dir-with-unique-name/results/pygmt.tests.test_makecpt.test_makecpt_cyclic/result.png

[maxrjones]

Locally it passes for me with pytest pygmt/tests/test_makecpt.py but fails with make test. I will need to look into this more but do not have time right now. I will tomorrow but if anyone else wants to take this over to finish quicker that is fine.

[weiji14]

Add a URL to the PyGMT issue to keep track.