chore(deps): bump axum-test from 18.7.0 to 20.0.0 in /bots/echidnabot

[dependabot]

⚠️ Dependabot is rebasing this PR ⚠️

Rebasing might not happen immediately, so don't worry if this takes some time.

Note: if you make any changes to this PR yourself, they will take precedence over the rebase.

---

Bumps axum-test from 18.7.0 to 20.0.0.

Release notes

Sourced from axum-test's releases.

19.1.0

• Remove TestServer::scheme, as it never actually worked with http requests only mocked requests.
• Remove TestRequest::scheme, as it never actually worked with http requests only mocked requests.
• Mocked transport no longer provides the scheme and authority to the service, which matches the behaviour with Tokio / Hyper based services.
• Mocked now provides the HOST header, which matches the behaviour with Hyper based HTTP services.

19.0.0

• Simplified constructors for TestServer, TestServerBuilder, and TestServerConfig.
  • new() constructor no longer returns a Result, and instead panics on failure.
  • Added try_new() to allow people to continue to catch the Result if needed.
• TestResponse assertion functions now return &self, allowing calls to be chained!
• Requests using Reqwest will now share cookies with regular Axum Test requests.
  • Cookies saved by one are saved to the other, and both adhere to TestServer::save_cookies() and TestServer::do_not_save_cookies() commands.
• Improved error messages across the API.
  • JSON and Yaml assertions now output the body of the request when they fail.
• Removed deprecated feature old-json-diff.

Commits

• See full diff in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot show <dependency name> ignore conditions will show all of the ignore conditions of the specified dependency
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)