Add support for optional binds

[lovetodream]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 41.81818% with 32 lines in your changes missing coverage. Please review.

Project coverage is 88.78%. Comparing base (b51af11) to head (5968b30).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...urces/PostgresNIOMacrosPlugin/StatementMacro.swift	38.29%	29 Missing ⚠️
Tests/PostgresNIOMacrosTests/StatementTests.swift	71.42%	2 Missing ⚠️
Sources/PostgresNIOMacros/Statement.swift	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main       #2      +/-   ##
==========================================
- Coverage   92.68%   88.78%   -3.90%     
==========================================
  Files           4        4              
  Lines         697      740      +43     
==========================================
+ Hits          646      657      +11     
- Misses         51       83      +32     

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Files with missing lines	Coverage Δ
...gresNIOMacrosPluginTests/StatementMacroTests.swift	100.00% <ø> (ø)
Sources/PostgresNIOMacros/Statement.swift	0.00% <0.00%> (ø)
Tests/PostgresNIOMacrosTests/StatementTests.swift	83.58% <71.42%> (-1.42%)	⬇️
...urces/PostgresNIOMacrosPlugin/StatementMacro.swift	83.91% <38.29%> (-6.34%)	⬇️