Add unit test cases for integrations.ts

File: https://github.com/mattermost/mattermost-mobile/blob/main/app/actions/remote/integrations.ts Acceptance criteria:

• Should pass in CI
• Should have Coverage of 95%

When submitting a PR:

1. PR title: test: <Jira ticket> unit test for filename``, ex. test: MM-59413 unit test for app/actions/remote/apps.ts
2. Indicate test coverage improvement, ex. From 2% to 96%
3. Attached a screenshot of test coverage result.
4. If something can’t be tested, describe and explain for reference.

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JIRA: https://mattermost.atlassian.net/browse/MM-59420