This latest version of sendgrid does not support apache http client 5.
I saw another issue where you are trying to use JDK specific http libraries.
However, its been in stale since 2016 and last comment during 2022 also has no useful updates.

Could you please bump the library to use Http Client 5 at least?
https://mvnrepository.com/artifact/org.apache.httpcomponents.client5/httpclient5