[Bug][Manager] Fix DataType deserialized exception

[kipshi]

What happened

Cannot deserialize value of type org.apache.inlong.manager.common.enums.FieldType from String "string": not one of the values accepted for Enum class: [BINARY, BOOLEAN, TIME, DATE, BIGINT, DECIMAL, FIXED, TIMESTAMP, FLOAT, SMALLINT, INT, STRING, SHORT, BYTE, DOUBLE, TINYINT, LONG]; nested exception is com.fasterxml.jackson.databind.exc.InvalidFormatException: Cannot deserialize value of type org.apache.inlong.manager.common.enums.FieldType from String "string": not one of the values accepted for Enum class: [BINARY, BOOLEAN, TIME, DATE, BIGINT, DECIMAL, FIXED, TIMESTAMP, FLOAT, SMALLINT, INT, STRING, SHORT, BYTE, DOUBLE, TINYINT, LONG]

What you expected to happen

Fix exception above

How to reproduce

send transformRequest to Manager

Environment

No response

InLong version

master

InLong Component

InLong Manager

Are you willing to submit PR?

• Yes, I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct