refactor(SupersetClient): use new /api/v1/security/csrf_token/ endpoint

[nytai]

corresponding SupersetClient change for: apache/superset#13212

[vercel]

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[codecov]

Codecov Report

Merging #980 (c7eb706) into master (e7a7f88) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #980   +/-   ##
=======================================
  Coverage   28.05%   28.05%           
=======================================
  Files         409      409           
  Lines        8363     8363           
  Branches     1173     1173           
=======================================
  Hits         2346     2346           
  Misses       5868     5868           
  Partials      149      149           

Impacted Files	Coverage Δ
...rset-ui-core/src/connection/SupersetClientClass.ts	100.00% <100.00%> (ø)
.../superset-ui-core/test/chart/fixtures/constants.ts	100.00% <100.00%> (ø)
...rset-ui-core/test/connection/fixtures/constants.ts	100.00% <100.00%> (ø)
...erset-ui-core/test/query/api/setupClientForTest.ts	100.00% <100.00%> (ø)

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[ktmud]