[9.0](backport #7456) Support replace directives in otel readme mage command

[mergify]

What does this PR do?

Makes the otel:readme mage command support replace directives. It now also supports pseudo-versions that Go uses for commit hashes in go.mod.

The implementation now actually parses the go.mod file using x/mod.

Why is it important?

In order to resolve a dependency conflict between beats and otel 0.120.x, we're going to use our own fork of prometheusreceiver. See #7443 for this change made in the 8.18 branch.

Checklist

• I have read and understood the pull request guidelines of this project.
• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas

---

This is an automatic backport of pull request #7456 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of 9071254 has failed:

On branch mergify/bp/9.0/pr-7456
Your branch is up to date with 'origin/9.0'.

You are currently cherry-picking commit 907125402.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   NOTICE.txt
	new file:   dev-tools/mage/otel/deps.go
	new file:   dev-tools/mage/otel/deps_test.go
	modified:   magefile.go

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   go.mod

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

[elasticmachine]

Pinging @elastic/elastic-agent-control-plane (Team:Elastic-Agent-Control-Plane)

[mergify]

This pull request has not been merged yet. Could you please review and merge it @swiatekm? 🙏

[mergify]

This pull request is now in conflicts. Could you fix it? 🙏
To fixup this pull request, you can check out it locally. See documentation: https://help.github.com/articles/checking-out-pull-requests-locally/

git fetch upstream
git checkout -b mergify/bp/9.0/pr-7456 upstream/mergify/bp/9.0/pr-7456
git merge upstream/9.0
git push upstream mergify/bp/9.0/pr-7456

[ycombinator]

@swiatekm CI was failing because it wanted prometheusreceiver out of the OTel README. So I ran mage update to fix that. But I'll defer to you on whether that's appropriate or not, considering that the original PR didn't include this removal.

[elastic-sonarqube]

Quality Gate passed

Issues
0 New issues
0 Fixed issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarQube

[elasticmachine]

💛 Build succeeded, but was flaky

• Buildkite Build
• Commit: 06eb540

Failed CI Steps

• x86_64:sudo: fleet-endpoint-security

History

• 💔 Build #19625 failed 84151ed
• 💔 Build #19621 failed 42daa72
• 💔 Build #19299 failed 5726e2c

cc @swiatekm

[mergify]

This pull request has not been merged yet. Could you please review and merge it @swiatekm? 🙏

[mergify]

This pull request has not been merged yet. Could you please review and merge it @swiatekm? 🙏