Fix elmah.io source

[ThomasArdal]

When looking for 'New Error' it only makes sense to look for messages where isNew is true and the severity is either Error or Fatal.

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[dylburger]

Thank you so much for submitting this! We've added it to our backlog to review, and our team has been notified.

[dylburger]

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[andrewjschuang]

@ThomasArdal thanks for the contribution! I've pushed a commit that adds the query to async run() and bumps the patch version of the source just to speed up the process.

[ThomasArdal]

@andrewjschuang Good catch 🙌

[vunguyenhung]

Hi everyone, all test cases are passed! Ready for release!

Test report
elmah.io_3956_2337.pdf

[vunguyenhung]

I will merge this PR for @ThomasArdal as he doesn't have merge permission for this repo 🙏