[rust-server] Update to hyper1 in rust-server generator

[dsteeley]

Following on from #21332 this PR completes the upgrade to Hyper1.

• Added rust-server-deprecated as a fallback. This generator can be removed in 8.0.x.
  • Probably should be in a separate PR
• Additional testing of rust-server samples
• All examples building and new tests pass

Plus all of the changes from #21332

• Biggest changes are hyper 0.14 to 1.6, and tokio 0.2 to 1.45.
• hyper's service_fn requires hyper::service::service::Service to return a Request. The previous version had a Service return another Service
• Swagger 7.0.0-rc2 is needed because that depends on hyper 1.x

PR checklist

• Read the contribution guidelines.
• Pull Request title clearly describes the work in the pull request and Pull Request description provides details about how to validate the work. Missing information here may result in delayed response from the community.
• Run the following to build the project and update samples:

  ./mvnw clean package || exit
  ./bin/generate-samples.sh ./bin/configs/*.yaml || exit
  ./bin/utils/export_docs_generators.sh || exit
  

  (For Windows users, please run the script in WSL)
  Commit all changed files.
  This is important, as CI jobs will verify all generator outputs of your HEAD commit as it would merge with master.
  These must match the expectations made by your contribution.
  You may regenerate an individual generator by passing the relevant config(s) as an argument to the script, for example ./bin/generate-samples.sh bin/configs/java*.
  IMPORTANT: Do NOT purge/delete any folders/files (e.g. tests) when regenerating the samples as manually written tests may be removed.
• File the PR against the correct branch: master (upcoming 7.x.0 minor release - breaking changes with fallbacks), 8.0.x (breaking changes without fallbacks)
• If your PR is targeting a particular programming language, @mention the technical committee members, so they are more likely to review the pull request.

Leaving this as draft for now, I'm running some testing of it through to us using it in production staging environments to validate the changes.

[wing328]

thanks for the pr

all tests passed

cc @frol (2017/07) @farcaller (2017/08) @richardwhiuk (2019/07) @paladinzh (2020/05) @jacob-pro (2022/10)

[dsteeley]

@wing328 Thanks for the initial pass. I've now tested this in our server stack and made a few tweaks with various bugs I have found.
I think this is ready for a review.

[wing328]

thanks for the PR

let's give it a try