Update minimum version (DataDog#22603)

DataDog/datadog-agent#36658

Author: ian28223

windows_certificate/README.md

@@ -4,7 +4,7 @@
 
 This integration monitors the Local Machine certificates in the [Windows Certificate Store][1] to check whether any have expired.
 
-**Minimum Agent version:** 7.66.0
+**Minimum Agent version:** 7.67.0
 
 ## Setup