Fix psalm issues

[Tigrov]

Q	A
Is bugfix?	❌
New feature?	❌
Breaks BC?	❌
Fixed issues	-

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (ef81e8b) 99.64% compared to head (c654a52) 99.64%. Report is 1 commits behind head on master.

:exclamation: Current head c654a52 differs from pull request most recent head fe8d87c. Consider uploading reports for the commit fe8d87c to get more accurate results

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #802 +/- ## ========================================= Coverage 99.64% 99.64% + Complexity 1271 1270 -1 ========================================= Files 63 63 Lines 3106 3106 ========================================= Hits 3095 3095 Misses 11 11 ```

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[what-the-diff[bot]]

PR Summary

• Support for PHP version 8.3 The workflow file has been updated to include support for PHP 8.3. This allows the use of this project with the latest version of PHP.

• New Enhancement Recorded A new enhancement has been referenced in the project's change log. This provides users with updated information about the improvements made to the project.

• Dependency Update The version of the vimeo/psalm dependency has been updated. This implies that our project now supports and benefits from the features of the new versions (^4.30|^5.20) of this dependency.

• New Issue Handler A new issue handler called RiskyTruthyFalsyComparison has been added. This improves the project's error handling capability and aids in spotting specific issues quicker.

• Code Refactoring Minor modifications were made to the normalize method used in the SchemaCache.php file. This means the code is now more efficient or easier to understand.

• Code Modification for Null Coalescing Operator The AbstractPdoCommand.php file was adjusted to use the null coalescing operator. This aids in cleaner and more efficient handling of null values, reducing the risk of unexpected null errors.

• Improved Handling of Empty $indexType Case The code in AbstractDDLQueryBuilder.php has been modified to better handle cases when $indexType is empty. This change reduces the chance of running into issues when $indexType value is not present.