Fix handling of Throwable in tryTest/catch

Throwable could be used as a type argument to catch(), but it would
possibly never be caught, because the method only catches Exception.

Notably, junit assertions fail with AssertionError, which is not a
subclass of Exception. Due to that, tests or utilities like
DeviceConfigRule that have failing assertions in catch() would not
run the subsequent cleanup steps.

Bug: 210377950
Test: atest CleanupTest
Change-Id: I54e2922cb466f077ba4d219f8c3c6f885316296c

staticlibs/testutils/hostdevice/com/android/testutils/Cleanup.kt

@@ -90,7 +90,7 @@ inline class TryExpr<T>(val result: Result<T>) {
         if (originalException !is E) return this
         return TryExpr(try {
             Result.success(block(originalException))
-        } catch (e: Exception) {
+        } catch (e: Throwable) {
             Result.failure(e)
         })
     }