Merge pull request #8425 from BenTheElder/wg-data-protection-email

add missing wg-data-protection email

Author: k8s-ci-robot

sigs.yaml

@@ -3614,6 +3614,7 @@ workinggroups:
     - github: yuxiangqian
       name: Xiangqian Yu
       company: Google
+      email: [email protected]
   meetings:
   - description: Regular WG Meeting
     day: Wednesday