feat(parser): Implement parsing of SINK statement

[nanderstabel]

What's changed and what's your intention?

Added implementation of SINK statement parsing.

Please explain IN DETAIL what the changes are in this PR and why they are needed:

Following statement is now allowed:

CREATE SINK snk FROM mv WITH (
    'sink' = 'mysql', 
    'mysql.endpoint' = '127.0.0.1:3306', 
    'mysql.table' = '<table_name>', 
    'mysql.database' = '<database_name>', 
    'mysql.user' = '<user_name>', 
    'mysql.password' = '<password>')

IF NOT EXISTS is optional.

Checklist

• I have written necessary docs and comments
• I have added necessary unit tests and integration tests
• All checks passed in ./risedev check (or alias, ./risedev c)

Refer to a related PR or issue link (optional)

[codecov]

Codecov Report

Merging #3219 (5dfbaf2) into main (a4aab7a) will increase coverage by 0.00%.
The diff coverage is 83.33%.

@@           Coverage Diff           @@
##             main    #3219   +/-   ##
=======================================
  Coverage   73.48%   73.48%           
=======================================
  Files         746      746           
  Lines      101957   101992   +35     
=======================================
+ Hits        74923    74952   +29     
- Misses      27034    27040    +6     

Flag	Coverage Δ
rust	73.48% <83.33%> (+<0.01%)	⬆️

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

Impacted Files	Coverage Δ
src/frontend/src/handler/show.rs	89.51% <0.00%> (-0.64%)	⬇️
src/sqlparser/src/keywords.rs	100.00% <ø> (ø)
src/sqlparser/src/ast/mod.rs	88.70% <33.33%> (-0.28%)	⬇️
src/sqlparser/src/ast/statement.rs	82.71% <95.65%> (+1.35%)	⬆️
src/sqlparser/src/parser.rs	92.31% <100.00%> (+0.02%)	⬆️
src/meta/src/barrier/mod.rs	69.13% <0.00%> (-0.33%)	⬇️

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[lmatz]

LGTM