fix: add more clickhouse disallowed functions on config

[dpgaspar]

SUMMARY

Adding more Clickhouse functions to our disallowed config. Although these functions could and possibly should not be authorized by the database credentials set by an Superset admin, it's a plus for Superset to disallow them by default.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

TESTING INSTRUCTIONS

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
• Introduces new feature or API
• Removes existing feature or API

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.81%. Comparing base (76d897e) to head (2e3b666).
Report is 1099 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff             @@
##           master   #31198       +/-   ##
===========================================
+ Coverage   60.48%   83.81%   +23.32%     
===========================================
  Files        1931      536     -1395     
  Lines       76236    38932    -37304     
  Branches     8568        0     -8568     
===========================================
- Hits        46114    32631    -13483     
+ Misses      28017     6301    -21716     
+ Partials     2105        0     -2105     

Flag	Coverage Δ
hive	48.79% <ø> (-0.38%)	⬇️
javascript	?
mysql	76.55% <ø> (?)
postgres	76.64% <ø> (?)
presto	53.29% <ø> (-0.52%)	⬇️
python	83.81% <ø> (+20.32%)	⬆️
sqlite	76.10% <ø> (?)
unit	60.87% <ø> (+3.24%)	⬆️

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[michael-s-molina]

Thanks for the PR @dpgaspar. Could you add something to UPDATING.md?