fix(plugin-chart-table): Upgrade old color formats

[kgabryje]

SUMMARY

First version of table conditional formatter was using rgb() format to describe colors. Later we changed it to hex notation, which broke the existing color formatters. This PR adds a migration of old color formatters to use hex notation.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

Before:

After:

TESTING INSTRUCTIONS

1. Open a table chart with conditional formatters using the old color formats (or just manually edit the form data in the database with 1 of rgb(255,0,0) for red, rgb(255,255,0) for yellow or rgb(0,255,0) for green.
2. Run the migration
3. Verify that the conditional formatters apply colors correctly.
4. The conditional formatters that were already using the new color notation should remain unchanged.

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
    Current: 0.56 s
    10+: 0.85 s
    100+: 0.64 s
    1000+: 0.54 s
• Introduces new feature or API
• Removes existing feature or API

[codecov]

Codecov Report

Merging #21101 (47a5cb9) into master (5c2a1f8) will decrease coverage by 0.72%.
The diff coverage is 55.00%.

❗ Current head 47a5cb9 differs from pull request most recent head 85a5dbc. Consider uploading reports for the commit 85a5dbc to get more accurate results

@@            Coverage Diff             @@
##           master   #21101      +/-   ##
==========================================
- Coverage   66.27%   65.55%   -0.73%     
==========================================
  Files        1770     1770              
  Lines       67530    67543      +13     
  Branches     7182     7185       +3     
==========================================
- Hits        44758    44276     -482     
- Misses      20936    21428     +492     
- Partials     1836     1839       +3     

Flag	Coverage Δ
hive	53.16% <ø> (ø)
mysql	?
postgres	?
presto	53.06% <ø> (ø)
python	79.99% <ø> (-1.50%)	⬇️
sqlite	79.61% <ø> (ø)
unit	50.72% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...ns/plugin-chart-echarts/src/Gauge/controlPanel.tsx	66.66% <ø> (ø)
...nd/plugins/plugin-chart-echarts/src/Gauge/types.ts	100.00% <ø> (ø)
...end/src/components/Datasource/DatasourceEditor.jsx	65.61% <0.00%> (-0.27%)	⬇️
...s/plugin-chart-echarts/src/Gauge/transformProps.ts	76.92% <57.89%> (-4.90%)	⬇️
superset/datasets/commands/update.py	25.00% <0.00%> (-69.05%)	⬇️
superset/datasets/commands/create.py	29.41% <0.00%> (-68.63%)	⬇️
superset/datasets/commands/delete.py	38.63% <0.00%> (-54.55%)	⬇️
superset/datasets/commands/bulk_delete.py	33.33% <0.00%> (-53.34%)	⬇️
superset/datasets/columns/commands/delete.py	44.11% <0.00%> (-52.95%)	⬇️
superset/datasets/metrics/commands/delete.py	44.11% <0.00%> (-52.95%)	⬇️
... and 30 more

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[michael-s-molina]

LGTM