refactor: catch OutOfMemoryError in RudderCloudModeManager

[vgupta98]

Description

• This PR resolves the fatal error caused by OutOfMemoryError in RudderCloudModeManager.

Implementation details

• The error actually occurs in DBPersistentManager in getDBRecordCount method. This method is called in maintainDBThreshold method which is in turn called in a thread in startCloudModeProcessor.
• The error is unrelated to any database operations and occurs at OS level, therefore this PR catches the error and logs a message in startCloudModeProcessor in RudderCloudModeManager.
• During the catching of the error, a Thread.sleep is added to prevent the while loop from running constantly in case the exception is thrown again.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• Version upgraded (project, README, gradle, podspec etc)
• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added unit tests for the code
• I have made corresponding changes to the documentation

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud