[newlib-cygwin/main] Cygwin: CI: Ignore stress test failures on arm64

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=c5fe019a9a3c6e6cfff4a42d63ce5d0975556b63

commit c5fe019a9a3c6e6cfff4a42d63ce5d0975556b63
Author: Jon Turney <[email protected]>
Date:   Sat May 3 15:53:09 2025 +0100

    Cygwin: CI: Ignore stress test failures on arm64
    
    Some of the stress-ng tests appear to be flaky on arm64.

Diff:
---
 .github/workflows/cygwin.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.github/workflows/cygwin.yml b/.github/workflows/cygwin.yml
index 54d7de1bb..f45e65209 100644
--- a/.github/workflows/cygwin.yml
+++ b/.github/workflows/cygwin.yml
@@ -255,6 +255,7 @@ jobs:
         export LOGDIR=$(cygpath -a logs)
         winsup/testsuite/stress/cygstress CI
       shell: bash --noprofile --norc -o igncr -eo pipefail '{0}'
+      continue-on-error: ${{ matrix.runarch == 'arm64' }}
 
     # upload logs artifact
     - name: Capture logs artifact