Do not require actix-router default features from actix-web-codegen

[dbanty]

PR Type

Bug Fix

PR Checklist

• Tests for the changes have been added / updated.
• Documentation comments have been added / updated.
• A changelog entry has been made for the appropriate packages.
• Format code with the latest stable rustfmt.
• (Team) Label with affected crates and semver status.

Overview

This should allow you to omit the regex dependency when using actix-web 4.6.0 with the macros feature enabled (and no unicode).

[robjtede]

Turns out we actually have a concession here in that the errors are strictly worse with the unicode feature disables. Only those who explicitly disable it will see them though, so I'm okay with it.

 13 | #[get("/{}")]
    | ^^^^^^^^^^^^^
    |
-   = help: message: Wrong path pattern: "/{}" regex parse error:
-               ((?s-m)^/(?P<>[^/]+))$
-                            ^
-           error: empty capture group name
+   = help: message: Wrong path pattern: "/{}" empty capture group names are not allowed