rust: increase test timeout again

Fixes [YOCTO #15625]

The first attempt to get around the timeout was to double it from 5000
to 10000, which doesn't seem to be enough. Let's try to fix this by
extending the timeout by a factor of 10.

Signed-off-by: Adrian Freihofer <adrian.freihofer@siemens.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(adapted from oe-core commit fb19e038582a2bfc414465ef396c30197f67128f)
Signed-off-by: Scott Murray <scott.murray@konsulko.com>

Author: afreof

recipes-devtools/rust/files/oeqa-selftest-Increase-timeout-in-process-sigpipe-ru.patch

@@ -25,7 +25,7 @@ index 11f363d62..c12d66016 100644
      // Just in case `yes` doesn't check for EPIPE...
      thread::spawn(|| {
 -        thread::sleep_ms(5000);
-+        thread::sleep_ms(10000);
++        thread::sleep_ms(50000);
          process::exit(1);
      });
      let output = process::Command::new("sh")