Use zig toolchain by default, lint files

config/pkg/lib/ngtcp2.yml

@@ -11,6 +11,9 @@ ngtcp2:
       license: MIT
   depends:
     - openssl
+  suggests:
+    - nghttp3
+    - brotli
   headers:
     - ngtcp2
   pkg-configs:
@@ -19,6 +22,3 @@ ngtcp2:
   static-libs@unix:
     - libngtcp2.a
     - libngtcp2_crypto_ossl.a
-  suggests:
-    - nghttp3
-    - brotli