feat: Uncomment rustBuildHook in Setup.lhs for autobuilding

Setup.lhs

@@ -31,7 +31,7 @@ should be removed before `cargo-cabal` stable release.
 >   defaultMainWithHooks
 >     simpleUserHooks
 >       { confHook = rustConfHook
-> --    , buildHook = rustBuildHook
+>       , buildHook = rustBuildHook
 >       }
 
 This hook could be remove if at some point, likely if this issue is resolved
@@ -59,21 +59,21 @@ https://github.com/haskell/cabal/issues/2641
 It would be nice to remove this hook ot some point, e.g., if this RFC is merged
 in Cabal https://github.com/haskell/cabal/issues/7906
 
-% rustBuildHook ::
-%   PD.PackageDescription ->
-%   LocalBuildInfo ->
-%   UserHooks ->
-%   BuildFlags ->
-%   IO ()
-% rustBuildHook description localBuildInfo hooks flags = do
-%   putStrLn "******************************************************************"
-%   putStrLn "Call `cargo build --release` to build a dependency written in Rust"
-%   -- FIXME: add `--target $TARGET` flag to support cross-compiling to $TARGET
-%   rawSystemExit (fromFlag $ buildVerbosity flags) "cargo" ["build","--release"]
-%   putStrLn "... `rustc` compilation seems to succeed 🦀! Back to Cabal build:"
-%   putStrLn "******************************************************************"
-%   putStrLn "Back to Cabal build"
-%   buildHook simpleUserHooks description localBuildInfo hooks flags
+> rustBuildHook ::
+>   PD.PackageDescription ->
+>   LocalBuildInfo ->
+>   UserHooks ->
+>   BuildFlags ->
+>   IO ()
+> rustBuildHook description localBuildInfo hooks flags = do
+>   putStrLn "******************************************************************"
+>   putStrLn "Call `cargo build --release` to build a dependency written in Rust"
+>   -- FIXME: add `--target $TARGET` flag to support cross-compiling to $TARGET
+>   rawSystemExit (fromFlag $ buildVerbosity flags) "cargo" ["build","--release"]
+>   putStrLn "... `rustc` compilation seems to succeed 🦀! Back to Cabal build:"
+>   putStrLn "******************************************************************"
+>   putStrLn "Back to Cabal build"
+>   buildHook simpleUserHooks description localBuildInfo hooks flags
 
 This handy automation (particularly useful when you want to quickly prototype
 without having to spawn manually `cargo` commands) is disabled by default.