Exclude em-http-request on Ruby 3.4

[c960657]

The current version of em-http-request (1.1.7) is not compatible with Ruby HEAD (see igrigorik/em-http-request#365).

Skip tests for the em-http-request integration on Ruby 3.4 for now in order to allow the other tests to complete.

Best reviewed with “ignore white-space”.

[bblimke]

@c960657 Thanks for this PR! I believe the skip solution fits well for the temporary em-http-request issue.

However, I'm not sure the JRuby case should use skip as well. em-http-request has never supported and likely never will support Java. Therefore, I believe using skip will unnecessarily clutter RSpec output. The specs for em-http-request should never run on the Java platform in my opinion.

[c960657]

Ok, I reversed that part.

[bblimke]

@c960657 why is it important to remove that require?

[c960657]

On Ruby HEAD, even require'ing the library will raise because of the missing constant. Removing it here doesn't seem to affect the tests on the other Ruby versions AFAICT.

[bblimke]

@c960657 thank you for investigating that and explaining 👍