Update html5ever to v0.27 (#140)

Author: philss

native/html5ever_nif/Cargo.lock

@@ -13,8 +13,8 @@ crate-type = ["cdylib"]
 # See the Precompilation guide for details about the features: https://github.com/philss/rustler_precompiled/blob/main/PRECOMPILATION_GUIDE.md
 rustler = { version = "0.32", default-features = false, features = ["derive", "nif_version_2_15"] }
 
-html5ever = "0.26"
-markup5ever = "0.11"
+html5ever = "0.27"
+markup5ever = "0.12"
 
 tendril = "0.4"
 lazy_static = "1.4"