Auto merge of #13918 - szeged:wpt-error-fixes, r=jdm

WebBluetooth fixes for the wpt tests

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Note: depends on #13612
WebBluetooth fixes for the failing wpt tests, excluding the `disconnect-during` tests cases, due to the lack of the event handling in the current implementation.
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- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] There are tests for these changes OR

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components/servo/Cargo.lock

@@ -207,8 +207,10 @@ name = "bluetooth_traits"
 version = "0.0.1"
 dependencies = [
  "ipc-channel 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 0.1.76 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 0.8.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "util 0.0.1",
 ]
 
 [[package]]