Fix #5399: Fix tests in LoggingIdentifierControllerTest

[BenHenning]

Explanation

Fixes #5399

This PR addresses the problems outlined in #5399 by:

• Ensuring that testGetInstallationId_secondAppOpen_providerReturnsSameInstallationIdValue and testFetchInstallationId_secondAppOpen_returnsSameInstallationIdValue are correctly run in a new TestApplication (as inspired by SplashActivityTest).
• Adding a new test to verify that session ID correctly regenerates in a new app instance (testGetSessionId_secondAppOpen_returnsNewRandomId) which also has the added benefit of providing confidence that the earlier tests are correctly verifying that the installation ID isn't changing, as expected, on a new app instance.
• Improved the tests around cache corruption (via emptying) and deletion to ensure they correctly demonstrate the failure fallbacks (empty/null for corruption and reinitialization for deletion in the same way as a new app install).

Essential Checklist

• [x] The PR title and explanation each start with "Fix #bugnum: " (If this PR fixes part of an issue, prefix the title with "Fix part of #bugnum: ...".)
• [x] Any changes to scripts/assets files have their rationale included in the PR explanation.
• [x] The PR follows the style guide.
• [x] The PR does not contain any unnecessary code changes from Android Studio (reference).
• [x] The PR is made from a branch that's not called "develop" and is up-to-date with "develop".
• [x] The PR is assigned to the appropriate reviewers (reference).

For UI-specific PRs only

N/A -- This is fixing a specific test and has no impact on UI behaviors.

[BenHenning]

@adhiamboperes PTAL for codeowners.

@kkmurerwa PTAL to verify that this addresses your points in #5399 as expected. I deviated slightly from the suggestions since installation ID should be retained on app restarts unless the database is deleted, whereas session ID should be regenerated.

[oppiabot[bot]]

Unassigning @kkmurerwa since they have already approved the PR.

[adhiamboperes]

Updating with latest develop and enabling auto-merge to unblock @kkmurerwa

[oppiabot[bot]]

Unassigning @adhiamboperes since they have already approved the PR.

[BenHenning]

Thanks much for the review @adhiamboperes!