changelog: fix email address with comma

Avoid lintian error bogus-mail-host-in-debian-changelog.

The name part of an email address containing a comma must
be enclosed in double quotation marks.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

debian/changelog

@@ -1346,7 +1346,7 @@ livecd-rootfs (2.699) hirsute; urgency=medium
   * hyper-v hook: Fix writing of pkla file out to correct scratch directory
     for image build.
 
- -- Jinming Wu, Patrick <me@patrickwu.space>  Tue, 03 Nov 2020 10:13:53 +0000
+ -- "Jinming Wu, Patrick" <me@patrickwu.space>  Tue, 03 Nov 2020 10:13:53 +0000
 
 livecd-rootfs (2.698) hirsute; urgency=medium