fix: content type

[devhaozi]

Closes #

📑 Description

有些情况下，Content-Type 会携带编码之类的东西，这样会导致无法匹配：
例如：multipart/form-data; boundary=--------------------------686926246495000608771553、application/json;charset=UTF-8

✅ Checks

• My pull request adheres to the code style of this project
• My code requires changes to the documentation
• I have updated the documentation as required
• All the tests have passed

ℹ Additional Information

[hwbrzzl]

Good catch, does the Gin driver need to be optimized, too?

[devhaozi]

Good catch, does the Gin driver need to be optimized, too?

Not sure, pending further testing.

[devhaozi]

Good catch, does the Gin driver need to be optimized, too?

Not sure, pending further testing.

Not need, it has a filter.