Update cloud.google.com/go/pubsub and supporting libraries

[andrewkroh]

What does this PR do?

Moving from cloud.google.com/go/pubsub v1.3.1 to v1.17.1.

Updating via go get cloud.google.com/go/pubsub.

Relates #29352

Why is it important?

Pull in bug fixes from third-party library.

Checklist

• My code follows the style guidelines of this project
  - [ ] I have commented my code, particularly in hard-to-understand areas
  - [ ] I have made corresponding changes to the documentation
  - [ ] I have made corresponding change to the default configuration files
  - [ ] I have added tests that prove my fix is effective or that my feature works
• I have added an entry in CHANGELOG.next.asciidoc or CHANGELOG-developer.next.asciidoc.

Related issues

• Relates [Filebeat] gcppubsub input can stop unexpectedly #29352

[elasticmachine]

Pinging @elastic/security-external-integrations (Team:Security-External Integrations)

[mergify]

This pull request does not have a backport label. Could you fix it @andrewkroh? 🙏
To fixup this pull request, you need to add the backport labels for the needed
branches, such as:

• backport-v./d./d./d is the label to automatically backport to the 7./d branch. /d is the digit

NOTE: backport-skip has been added to this pull request.

[elasticmachine]

💚 Build Succeeded

the below badges are clickable and redirect to their specific view in the CI or DOCS

Expand to view the summary

Build stats

• Start Time: 2021-12-08T20:30:20.321+0000

• Duration: 201 min 12 sec

• Commit: 1fb353e

Test stats 🧪

Test	Results
Failed	0
Passed	48583
Skipped	4276
Total	52859

💚 Flaky test report

Tests succeeded.

🤖 GitHub comments

To re-run your PR in the CI, just comment with:

• /test : Re-trigger the build.

• /package : Generate the packages and run the E2E tests.

• /beats-tester : Run the installation tests with beats-tester.

• run elasticsearch-ci/docs : Re-trigger the docs validation. (use unformatted text in the comment!)

[andrewkroh]

I will backport this if I can confirm that it fixes the bug we are seeing in #29352.

[andrewkroh]

@Mergifyio backport 7.16

(opening a PR to run tests on 7.16, not planning to merge yet)

[mergify]

backport 7.16

✅ Backports have been created

• #29369 Update cloud.google.com/go/pubsub and supporting libraries (backport #29353) has been created for branch 7.16

[andrewkroh]

@Mergifyio backport 8.0

[mergify]

backport 8.0

✅ Backports have been created

• #29471 Update cloud.google.com/go/pubsub and supporting libraries (backport #29353) has been created for branch 8.0

[ruflin]

@Mergifyio backport 7.17

[mergify]

backport 7.17

✅ Backports have been created

• #29906 Update cloud.google.com/go/pubsub and supporting libraries (backport #29353) has been created for branch 7.17

[ruflin]

@andrewkroh @efd6 This did go into 7.16 but not 7.17. I'm pretty sure it should also be in 7.17. Can you check that the following PR is merged if needed? #29906