go.mod: Update dependencies

[mrueg]

This PR is modernizing dependencies, which a lot had updates available.

[fujita]

Any reason to be updated for such as security bugs?

[mrueg]

to my knowledge just informational ones (checked with govulncheck).

=== Informational ===

The vulnerabilities below are in packages that you import, but your code
doesn't appear to call any vulnerable functions. You may not need to take any
action. See https://pkg.go.dev/golang.org/x/vuln/cmd/govulncheck
for details.

Vulnerability #1: GO-2022-1059
  An attacker may cause a denial of service by crafting an
  Accept-Language header which ParseAcceptLanguage will take
  significant time to parse.
  Found in: golang.org/x/text/language@v0.3.7
  Fixed in: golang.org/x/text/language@v0.3.8
  More info: https://pkg.go.dev/vuln/GO-2022-1059

Vulnerability #2: GO-2022-0969
  HTTP/2 server connections can hang forever waiting for a clean
  shutdown that was preempted by a fatal error. This condition can
  be exploited by a malicious client to cause a denial of service.
  Found in: golang.org/x/net/http2@v0.0.0-20220225172249-27dd8689420f
  Fixed in: golang.org/x/net/http2@v0.0.0-20220906165146-f3363e06e74c
  More info: https://pkg.go.dev/vuln/GO-2022-0969

Vulnerability #3: GO-2022-0493
  When called with a non-zero flags parameter, the Faccessat
  function can incorrectly report that a file is accessible.
  Found in: golang.org/x/sys/unix@v0.0.0-20211216021012-1d35b9e2eb4e
  Fixed in: golang.org/x/sys/unix@v0.0.0-20220412211240-33da011f77ad
  More info: https://pkg.go.dev/vuln/GO-2022-0493

[fujita]

Thanks, pushed.