Inherit the license from http4s

[danicheg]

To keep things coherent, what do you think about inheriting the license (Apache License 2.0) from the core http4s module?
As for the current Copyright 2023 Christopher Davenport license, probably (I'm not a lawyer really), we need public approval from @ChristopherDavenport.

UPD: ah, in the code, we have https://opensource.org/licenses/MIT as the license.

[danicheg]

When there is a consensus on the topic, don't forget to return headers check on CI (link to build.sbt).

[danicheg]

@http4s/grpc hey folks. I'd like us to publish the initial 0.1.0 release (or maybe 0.1.0-M1). But the thing with the license perhaps should be solved first.

[hamnis]

Do we really need to change the license?
The copyright may have to be changed, not sure how that actually works.

[danicheg]

Do we really need to change the license?

There is no particular need doubtless. But I like to keep things coherent. Also, we might do that migration from MIT to Apache 2.0 generally. Just we need to get the consent of the original contributors.