Update 4-flaky-tests.adoc

Author: lihaoyi

blog/modules/ROOT/pages/4-flaky-tests.adoc

@@ -4,7 +4,7 @@
 
 
 :author: Li Haoyi
-:revdate: 1 Jan 2025
+:revdate: 1 January 2025
 _{author}, {revdate}_
 
 include::mill:ROOT:partial$gtag-config.adoc[]