Allow separating the method and pattern with [ \t]+, this matches the
stdlib change that was made in golang/go@7b583fd

The rationale is the same as the stdlib issue, it allows you to visually
line up patterns with variable-width methods:

  r.Handle("GET    /my-route", handler1)
  r.Handle("POST   /my-route", handler2)
  r.Handle("DELETE /my-route", handler3)

In general aligning ourselves with the stdlib brings less surprise for
end users.

Fixes: 0fe6bf1 ("Use RoutePath in URLFormat middleware (#718)")
Found by PostgresPro with Svace Static Analyzer

Signed-off-by: Maksim Korotkov <m.korotkov@postgrespro.ru>

Similar to #901

Adds support to get the pattern that was used by Chi to match the route,
without needing to call the Chi context.

…sage (#1016)

* chore: remove comment from TestThrottleRetryAfter test

* test: fix flaky TestThrottleRetryAfter by synchronizing token usage

…1011)

- Only create time.NewTimer() when actually needed to wait
- Reduces allocations from 7 to 4 and memory usage by ~54%
- Improves performance by ~50% in high-throughput scenarios

…wildcards (#1012)

Co-authored-by: srpvpn <srpvpn@users.noreply.github.com>

This code predates the introduction of the reverseMethodMap.