Return nil when fetching the latest tag results in a JSON::ParserError

[amazimbe]

What are you trying to accomplish?

Resolve the Sentry error below:

JSON::ParserError
unexpected token at ''

The error occurs when fetching the latest tag results in a JSON::ParserError. However, the method where the result of this call is being used says the result is nilable; therefore it should be safe to return nil when the error occurs

How will you know you've accomplished your goal?

The error will no longer appear in Sentry.

Checklist

• I have run the complete test suite to ensure all tests and linters pass.
• I have thoroughly tested my code changes to ensure they work as expected, including adding additional tests for new functionality.
• I have written clear and descriptive commit messages.
• I have provided a detailed description of the changes in the pull request, including the problem it addresses, how it fixes the problem, and any relevant details about the implementation.
• I have ensured that the code is well-documented and easy to understand.

[abdulapopoola]

do we know why this happens? For example, why is the tag empty?

[amazimbe]

I don't know at this point but one of the reasons I added the log below is so that I can get the docker repo name and the tag as that would be handy in any further investigations.