Allow validation tests to fail.

Author: maleadt

.buildkite/pipeline.yml

@@ -66,6 +66,7 @@ steps:
           intel: "*"
         if: build.message !~ /\[skip tests\]/ && !build.pull_request.draft
         timeout_in_minutes: 60
+        soft_fail: true
 
 env:
   JULIA_PKG_SERVER_REGISTRY_PREFERENCE: "eager" # OK to downloading JLLs from GitHub