Fix the email address for mimowo

Author: mimowo

sigs.yaml

@@ -2877,7 +2877,7 @@ sigs:
     - github: mimowo
       name: Michał Woźniak
       company: Google
-      email: acondor@google.com
+      email: michalwozniak@google.com
     - github: tenzen-y
       name: Yuki Iwai
       company: CyberAgent, Inc.