Signed-off-by: Miek Gieben <[email protected]>

Update Go module dependencies monthly.

Signed-off-by: SuperQ <[email protected]>

The check was removed in #975.

This function was previously changed from using strings.ToLower to a
custom loop to ensure it only lowercases ASCII characters. This was
more complicated than it needed to be and introduced more allocations
than is necessary.

Instead of that approach we call strings.Map with a simple ASCII
lowercase mapping function. Sadly we still use the nice ASCII-only fast
path that strings.ToLower had, but it's unlikely to be worth all the
extra code.

Bumps [golang.org/x/sync](https://github.com/golang/sync) from 0.3.0 to 0.4.0.
- [Commits](golang/sync@v0.3.0...v0.4.0)

---
updated-dependencies:
- dependency-name: golang.org/x/sync
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [golang.org/x/net](https://github.com/golang/net) from 0.15.0 to 0.17.0.
- [Commits](golang/net@v0.15.0...v0.17.0)

---
updated-dependencies:
- dependency-name: golang.org/x/net
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Avoid using strings.Split

strings.Split has to allocate for the return slice. This allocation
was wasteful in ever case it was used in this library.

Instead we use the new strings.Cut and other string manipulation where
appropriate. This tends to lead to cleaner and more readable code in
addition to the benefits this has on the garbage collector.

* Further simplify structTag in the msg_generate.go

This doesn't need to call strings.TrimPrefix twice.

This is a very minor change that simply neatens up this function.

This is exactly the same change as #1429 but for packOctetString.

I have no idea how I missed this given it's the very next function.

Updates #1429

I missed this pattern in #1432. These seem to be the only two
occurrences.

Updates #1432

We definitely shouldn't be using goto for a simple loop.

This is technically a behaviour change when off == len(msg), but we're
always called with off < len(msg) so this is unobservable.

This will cause one less allocation as String allocates on a
bytes.Buffer but not on a strings.Builder.

No one has complained about this in the four years it's been here. I
think we can safely accept this new behaviour.

* Fix closing order

* Comment to make clear that the close order is deliberate

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Co-authored-by: Tim Scheuermann <[email protected]>

* feat: add support for ReuseAddr

* Update listen_reuseport.go

* Update listen_reuseport.go

* fixup! feat: add support for ReuseAddr

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Co-authored-by: Miek Gieben <[email protected]>