Update BuildandDeployment.yml

Author: wurstbrot

data/BuildandDeployment.yml

@@ -237,7 +237,7 @@ Patch Management:
     usefulness: 3
     level: 2
     samm2: o-environment-management|B|1
-  Usage of a maximum lifetime (age) for images:
+  Usage of a maximum lifetime for images:
     risk: Vulnerabilities in images of running containers stay for too long and might get exploited. Long running containers have potential memory leaks. A compromised container might get killed by restarting the container (e.g. in case the attacker has not reached the persistence layer).
     measure: The periodically builded images are deployed minimum every 30 days (better hourly/daily/weekly). Meaning an image is not in production for longer than 30 days. 
     difficultyOfImplementation: