Fix IOPub error when showing progress with get_raw_data().

[aaronweeden]

Description

This PR fixes the error IOPub data rate exceeded when using the show_progress=True parameter to get_raw_data() in a Jupyter notebook.

This error is visible in, for example, the machine learning example notebook from xdmod-notebooks.

This PR fixes the error by only updating the progress message every 10,000 rows rather than every single row.

This PR also does the following:

• Make a few enhancements to the PR template.
• Remove an extra empty line from docs/developing.md.
• Update the regression test artifacts based on the changes to ACCESS XDMoD 11.0.

This is also backported for the 1.0.2 development version: #40.

Tests performed

Tested on my laptop following docs/developing.md.

Types of changes

• Refactoring / documentation update (non-breaking change which does not change functionality)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Release preparation

Checklist:

• CHANGELOG.md has been updated
• xdmod_data/__version__.py has been updated to the next development version
• The milestone is set correctly on the pull request
• The appropriate labels have been added to the pull request
• Running the automated tests (see docs/developing.md) produces no errors
• Updates have been made to the xdmod-notebooks repository as necessary, and the notebooks all run successfully
• The changes in this PR have been ported/backported to other branches as needed