Bug fix for #3080 (write.config.xml.ED2() not using <revision> tag correctly)

[Aariq]

Description

data() can't be used for internal datasets. The history.csv files are now stored as internal data and need to be accessed with history, history.r81, etc. This PR fixes some code in write.config.xml.ED2() that wasn't working.

Motivation and Context

Review Time Estimate

• Immediately
• Within one week
• When possible

Types of changes

• 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)

Checklist:

• My change requires a change to the documentation.
• My name is in the list of CITATION.cff
• I have updated the CHANGELOG.md.
• 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.