docs: update link to GOOS and GOARCH values

[dabcoder]

Fixes #7666.

Description

https://github.com/golang/go/blob/master/src/go/build/syslist.go returns a 404, updating the link.

How was this change tested?

Verified new link.

Does this change impact docs?

N/A, documentation update.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

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[jonathan-innis]

LGTM 🚀

[coveralls]

Pull Request Test Coverage Report for Build 13110447906

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.02%) to 64.88%

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Totals
Change from base Build 13083813691:	0.02%
Covered Lines:	5799
Relevant Lines:	8938

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💛 - Coveralls