ci: add license checker

[TennyZhuang]

Signed-off-by: TennyZhuang zty0826@gmail.com

What's changed and what's your intention?

Check license header in CI

Checklist

Refer to a related PR or issue link (optional)

[codecov]

Codecov Report

Merging #1780 (9f81dee) into main (e6dd2bf) will increase coverage by 0.05%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #1780      +/-   ##
==========================================
+ Coverage   71.29%   71.35%   +0.05%     
==========================================
  Files         605      605              
  Lines       78599    78689      +90     
==========================================
+ Hits        56039    56150     +111     
+ Misses      22560    22539      -21     

Flag	Coverage Δ
rust	71.35% <ø> (+0.05%)	⬆️

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

Impacted Files	Coverage Δ
src/sqlparser/src/keywords.rs	100.00% <0.00%> (ø)
src/frontend/src/scheduler/execution/query.rs	0.00% <0.00%> (ø)
src/frontend/src/scheduler/execution/stage.rs	0.00% <0.00%> (ø)
src/sqlparser/src/parser.rs	92.54% <0.00%> (+0.01%)	⬆️
src/frontend/src/test_utils.rs	69.87% <0.00%> (+0.95%)	⬆️
src/sqlparser/src/ast/mod.rs	86.74% <0.00%> (+1.09%)	⬆️
src/frontend/src/handler/mod.rs	41.02% <0.00%> (+3.52%)	⬆️
src/frontend/src/catalog/root_catalog.rs	77.86% <0.00%> (+5.89%)	⬆️
src/utils/pgwire/src/types.rs	62.50% <0.00%> (+6.25%)	⬆️
src/frontend/src/catalog/schema_catalog.rs	81.94% <0.00%> (+7.36%)	⬆️
... and 2 more

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