feat(query): support `json_object_insert` function

[b41sh]

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Summary

support json_object_insert function for example:

MySQL [(none)]> SELECT json_object_insert('{"a":1,"b":2}'::variant, 'c', 3);
+------------------------------------------------------+
| json_object_insert('{"a":1,"b":2}'::VARIANT, 'c', 3) |
+------------------------------------------------------+
| {"a":1,"b":2,"c":3}                                  |
+------------------------------------------------------+
1 row in set (0.043 sec)

MySQL [(none)]> SELECT json_object_insert('{"city":"San Mateo","state":"CA"}'::variant, 'city', 'San Jose', true);
+--------------------------------------------------------------------------------------------+
| json_object_insert('{"city":"San Mateo","state":"CA"}'::VARIANT, 'city', 'San Jose', TRUE) |
+--------------------------------------------------------------------------------------------+
| {"city":"San Jose","state":"CA"}                                                           |
+--------------------------------------------------------------------------------------------+
1 row in set (0.040 sec)

• fixes: #[Link the issue here]

Tests

• [x] Unit Test
• [x] Logic Test
• [ ] Benchmark Test
• [ ] No Test - Explain why

Type of change

• [ ] Bug Fix (non-breaking change which fixes an issue)
• [x] New Feature (non-breaking change which adds functionality)
• [ ] Breaking Change (fix or feature that could cause existing functionality not to work as expected)
• [ ] Documentation Update
• [ ] Refactoring
• [ ] Performance Improvement
• [ ] Other (please describe):

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This change is