calling resetPingTimeout on each ping

[paranormal]

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Description

We built a web wallet app and noticed an unusually high number of relayer disconnected messages in logs. The relayer was not resetting the ping timeout on every ping, just on the first one. This MR fixes this. Also, I've noticed that increasing the wait interval to an additional 4 seconds made the error disappear completely.

Type of change

• Chore (non-breaking change that addresses non-functional tasks, maintenance, or code quality improvements)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Draft PR (breaking/non-breaking change which needs more work for having a proper functionality [Mark this PR as ready to review only when completely ready])
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

How has this been tested?

After the fix, I see only Disconnecting for load balancing reasons disconnects in server logs.

Fixes/Resolves (Optional)

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Checklist

• I have performed a self-review of my own code
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules

Additional Information (Optional)

Please include any additional information that may be useful for the reviewer.

[ganchoradkov]

Thank you for the patch! Please re-add the missing const as its breaking the build

[ganchoradkov]

💯