Auto merge of #22272 - georgeroman:kill_test_processes_on_any_error, r=jdm

Kill test processes whenever any error occurs

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---
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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #21822

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tests/wpt/metadata/MANIFEST.json

@@ -671119,7 +671119,7 @@
    "support"
   ], 
   "tools/wptrunner/wptrunner/executors/executorservo.py": [
-   "49b682c749f897eb234c6bf4bb7ade3ed021dd7b", 
+   "784356bb8b0c2b4e12cf53bb0ba90a9a3ffe39c2", 
    "support"
   ], 
   "tools/wptrunner/wptrunner/executors/executorservodriver.py": [

tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorservo.py

@@ -122,7 +122,7 @@ class ServoTestharnessExecutor(ProcessTestExecutor):
                     self.proc.wait()
                 else:
                     self.proc.kill()
-        except KeyboardInterrupt:
+        except:
             self.proc.kill()
             raise