Disable CI on the l10n_crowdin_action branch

[vthomas13]

What is this about?

A suggestion from @HowardBraham, we want to avoid running CI on this l10n_crowdin_action branch.
@Gudahtt suggests that we keep the lint step to catch issues with localized messages.

Scenario

No response

Design

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Technical Details

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Threat Modeling Framework

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Acceptance Criteria

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Stakeholder review needed before the work gets merged

• Engineering (needed in most cases)
• Design
• Product
• QA (automation tests are required to pass before merging PRs but not all changes are covered by automation tests - please review if QA is needed beyond automation tests)
• Security
• Legal
• Marketing
• Management (please specify)
• Other (please specify)

References

No response

[HowardBraham]

I think it would be easiest to implement the "just run the lint step" using GitHub Actions. You're going to encounter great complexities if you try to do it within CircleCI.

[HowardBraham]

I made some changes that I documented in this PR comment: #25489 (comment)

I am not sure if this will already stop running CI on the l10n_crowdin_action branch, but it might. There does appear to be a PR though (#24889), so let's keep an eye on this.