all: bump gg@v0.6.0

gg@v0.6.0 has a better handling of points' closeness.
see:
https://git.sr.ht/~sbinet/gg/commit/1994be2d12593293d38a10764df23880fee6f436

Fixes #687.

Signed-off-by: Sebastien Binet <binet@cern.ch>

Author: sbinet

go.mod

@@ -5,7 +5,7 @@ go 1.22.0
 require (
 	gioui.org v0.2.0
 	gioui.org/x v0.2.0
-	git.sr.ht/~sbinet/gg v0.5.0
+	git.sr.ht/~sbinet/gg v0.6.0
 	github.com/ajstarks/svgo v0.0.0-20211024235047-1546f124cd8b
 	github.com/andybalholm/stroke v0.0.0-20221221101821-bd29b49d73f0
 	github.com/go-fonts/latin-modern v0.3.3

go.sum

@@ -11,8 +11,8 @@ gioui.org/x v0.2.0 h1:/MbdjKH19F16auv19UiQxli2n6BYPw7eyh9XBOTgmEw=
 gioui.org/x v0.2.0/go.mod h1:rCGN2nZ8ZHqrtseJoQxCMZpt2xrZUrdZ2WuMRLBJmYs=
 git.sr.ht/~sbinet/cmpimg v0.1.0 h1:E0zPRk2muWuCqSKSVZIWsgtU9pjsw3eKHi8VmQeScxo=
 git.sr.ht/~sbinet/cmpimg v0.1.0/go.mod h1:FU12psLbF4TfNXkKH2ZZQ29crIqoiqTZmeQ7dkp/pxE=
-git.sr.ht/~sbinet/gg v0.5.0 h1:6V43j30HM623V329xA9Ntq+WJrMjDxRjuAB1LFWF5m8=
-git.sr.ht/~sbinet/gg v0.5.0/go.mod h1:G2C0eRESqlKhS7ErsNey6HHrqU1PwsnCQlekFi9Q2Oo=
+git.sr.ht/~sbinet/gg v0.6.0 h1:RIzgkizAk+9r7uPzf/VfbJHBMKUr0F5hRFxTUGMnt38=
+git.sr.ht/~sbinet/gg v0.6.0/go.mod h1:uucygbfC9wVPQIfrmwM2et0imr8L7KQWywX0xpFMm94=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/ajstarks/deck v0.0.0-20200831202436-30c9fc6549a9/go.mod h1:JynElWSGnm/4RlzPXRlREEwqTHAN3T56Bv2ITsFT3gY=
 github.com/ajstarks/deck/generate v0.0.0-20210309230005-c3f852c02e19/go.mod h1:T13YZdzov6OU0A1+RfKZiZN9ca6VeKdBdyDV+BY97Tk=