Upgrades to peg 0.6

Improves performances by 50%

lib/Cargo.toml

@@ -9,7 +9,6 @@ repository = "https://github.com/Tpt/oxigraph"
 description = """
 An RDF and SPARQL library in Rust
 """
-build = "build.rs"
 edition = "2018"
 
 [dependencies]
@@ -28,6 +27,7 @@ rio_turtle = "0.4"
 rio_xml = "0.4"
 hex = "0.4"
 nom = "5"
+peg = "0.6"
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]
 js-sys = "0.3"
@@ -39,9 +39,6 @@ criterion = "0.3"
 [target.'cfg(target_arch = "wasm32")'.dev-dependencies]
 wasm-bindgen-test = "0.3"
 
-[build-dependencies]
-peg = "0.5"
-
 [[bench]]
 name = "sparql_query"
 harness = false

lib/build.rs

@@ -1,5 +0,0 @@
-use peg;
-
-fn main() {
-    peg::cargo_build("src/sparql/sparql_grammar.rustpeg");
-}