wait longer for binding test to receive event to hopefully fix tests

[greenie-msft]

Description

Please explain the changes you've made

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• Code compiles correctly
• Created/updated tests
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[philliphoff]

Never hurts to try! :-)

[DeepanshuA]

I agree, increasing time doesn't hurt. But, I don't think that is the issue here.
binding test is passing intermittently.
There are runs in existing PRs #616 and #615 which have un-successful runs as well.
I tried to reproduce on my local and it passed consistently, without any changes as well.

[dapr-bot]

This pull request has been automatically marked as stale because it has not had activity in the last 30 days. It will be closed in 7 days if no further activity occurs. Please feel free to give a status update now, ping for review, or re-open when it's ready. Thank you for your contributions!

[dapr-bot]

This pull request has been automatically closed because it has not had activity in the last 37 days. Please feel free to give a status update now, ping for review, or re-open when it's ready. Thank you for your contributions!