Merge bitcoin/bitcoin#23370: test: Add ios_base::width tsan suppression

96c7db9 test: Add ios_base::width tsan suppression (Hennadii Stepanov)

Pull request description:

  This PR:
  - adds tsan suppression for intermittent failures in CI
  ```
  SUMMARY: ThreadSanitizer: data race /usr/lib/llvm-12/bin/../include/c++/v1/ios:523:12 in std::__1::ios_base::width() const
  ```

  - fixes #23366

ACKs for top commit:
  laanwj:
    Concept and code review ACK 96c7db9

Tree-SHA512: fcad296e8da4a6d94dcbb011c3d9b3d07f6983818be16cfff8341a035fa6abe2777ae72409c9bc83083097660408a850c1e9cd6f0ad3ea7976e4a4768f1e1858

Author: laanwj

test/sanitizer_suppressions/tsan

@@ -41,3 +41,6 @@ race:CZMQAbstractPublishNotifier::SendZmqMessage
 
 # https://github.com/bitcoin/bitcoin/pull/20218, https://github.com/bitcoin/bitcoin/pull/20745
 race:epoll_ctl
+
+# https://github.com/bitcoin/bitcoin/issues/23366
+race:std::__1::ios_base::width