update Hextra to v0.11.1

Author: marten-seemann

go.mod

@@ -1,5 +1,5 @@
 module github.com/quic-go/docs
 
-go 1.22.0
+go 1.24.0
 
-require github.com/imfing/hextra v0.8.6 // indirect
+require github.com/imfing/hextra v0.11.1 // indirect

go.sum

@@ -1,2 +1,2 @@
-github.com/imfing/hextra v0.8.6 h1:fpOqzcUs26Lc/ZzowYSBcnpe00d/aZw4HhiHP7ycSks=
-github.com/imfing/hextra v0.8.6/go.mod h1:cEfel3lU/bSx7lTE/+uuR4GJaphyOyiwNR3PTqFTXpI=
+github.com/imfing/hextra v0.11.1 h1:8pTc4ReYbzGTHAnyiebmlT3ijFfIXiGu1r7tM/UGjFI=
+github.com/imfing/hextra v0.11.1/go.mod h1:cEfel3lU/bSx7lTE/+uuR4GJaphyOyiwNR3PTqFTXpI=