[8.19](backport #5480) build(deps): bump golang.org/x/net from 0.43.0 to 0.44.0

[mergify]

Bumps golang.org/x/net from 0.43.0 to 0.44.0.

Commits

• 3b23d57 http2: fix race condition when disabling goroutine debugging for one test
• 8741050 http2: simplify TestServer_Push_RejectAfterGoAway
• 96e405c http2: modernize TestTransportRoundtripCloseOnWriteError
• 6dc6880 http2: simplify ClientConn Close and Shutdown tests
• 4e2915b http2: modernize TestTransportAllocationsAfterResponseBodyClose
• 30b0e78 http2: modernize TestRoundTripDoesntConsumeRequestBodyEarly
• b9acd77 http2: speed up TestTransportFlowControl
• 5153f4d go.mod: update golang.org/x dependencies
• 9338bdd http2: speed up TestTransportHandlerBodyClose
• 6b20036 http2: add synchronous handler support to serverTester
• Additional commits viewable in compare view

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---

This is an automatic backport of pull request #5480 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of 80b580e has failed:

On branch mergify/bp/8.19/pr-5480
Your branch is up to date with 'origin/8.19'.

You are currently cherry-picking commit 80b580e.
  (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-fips.txt
	modified:   NOTICE.txt
	modified:   go.sum
	modified:   testing/go.mod
	modified:   testing/go.sum

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

[prodsecmachine]

🎉 Snyk checks have passed. No issues have been found so far.

✅ security/snyk check is complete. No issues have been found. (View Details)

✅ license/snyk check is complete. No issues have been found. (View Details)

[mergify]

This pull request is now in conflicts. Could you fix it @mergify[bot]? 🙏
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/8.19/pr-5480 upstream/mergify/bp/8.19/pr-5480
git merge upstream/8.19
git push upstream mergify/bp/8.19/pr-5480

[mergify]

This pull request is now in conflicts. Could you fix it @mergify[bot]? 🙏
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/8.19/pr-5480 upstream/mergify/bp/8.19/pr-5480
git merge upstream/8.19
git push upstream mergify/bp/8.19/pr-5480

[elastic-sonarqube]

Quality Gate passed

Issues
0 New issues
0 Fixed issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarQube