feat: add support of pojo's value which type is object

[DwArFeng]

Closes #

Proposed Changes

add support of pojo's value which type is object

an example:

public class PojoWithObjectValue {
    @Column(measurement = true)
    String customField;

    @Column(name = "tag", tag = true)
    private String tag;

    // The value's type is object, the value's actual type can be Number, boolean, or String, etc.
    @Column(name = "value")
    private Object value;
}

Checklist

• [ ] CHANGELOG.md updated
• [x] Rebased/mergeable
• [x] A test has been added if appropriate
• [x] mvn test completes successfully
• [x] Commit messages are conventional
• [ ] Sign CLA (if not already signed)

[bednar]

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