Backport of build: upgrade to go1.22 into release/1.7.x

[hc-github-team-nomad-core]

Backport

This PR is auto-generated from #20066 to be assessed for backporting due to the inclusion of the label backport/1.7.x.

The below text is copied from the body of the original PR.

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oof, there's some go-msgpack problems with go1.22

 ==> Running go generate...
codecgen error: error running 'go run codecgen-main-102.generated.go': exit status 1, console: panic: encoding alphabet includes duplicate symbols

goroutine 1 [running]:
encoding/base64.NewEncoding(...)
	/opt/hostedtoolcache/go/1.22.0/x64/src/encoding/base64/base64.go:82
github.com/hashicorp/go-msgpack/codec.init()
	/home/runner/go/pkg/mod/github.com/hashicorp/go-msgpack@v1.1.5/codec/gen.go:140 +0xce6
exit status 2

It appears NewEncoding no longer allows duplicate characters in the alphabet you supply.
https://go-review.googlesource.com/c/go/+/520335

However go-msgpack (and upstream ugorji) use two underscores in the msgpack alphabet.
https://github.com/hashicorp/go-msgpack/blob/v2.1.1/codec/gen.go#L135

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Overview of commits

• 55b0795

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