Make single column example run reproducibility test

[imreddyTeja]

Purpose

Create a reproducibility test for a single column run. This will be used to test the results of changing to a pure single column.

To-do

Content

Adds reproducibility test to the "single column hydrostatic balance float64" job

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• I have read and checked the items on the review checklist.

[charleskawczynski]

Looks good, I think we just need to

• Add single_column_hydrostatic_balance_ft64 to the reproducibility_tests/reproducibility_test_job_ids.jl list, and
• increment the ref counter