[CRE-2556] Improve connection between node and gateway

[agparadiso]

Description

This pr contains two improvements:

• The keepalive loop was a single routine for every node, in case of one node down, the loop would get stuck. This translates to seeing the platform_gateway_keepalive_pings_sent_total metric drop for all nodes when in reality only one may be down. This change will help diagnose quicker these kind of issues
• AuthTimestampToleranceSec default to 5. Under network instability scenarios, the handshake between node and gateway might take more than 1 second. Having 0 as default means this has to happen on the same second. This config change gives the node a bit more time to re-connect and can decrease a 1hr incident to seconds by allowing the reconnection to succeed.

CRE-2556

Requires

Supports

[github-actions]

I see you updated files related to core. Please run make gocs in the root directory to add a changeset as well as in the text include at least one of the following tags:

• #added For any new functionality added.
• #breaking_change For any functionality that requires manual action for the node to boot.
• #bugfix For bug fixes.
• #changed For any change to the existing functionality.
• #db_update For any feature that introduces updates to database schema.
• #deprecation_notice For any upcoming deprecation functionality.
• #internal For changesets that need to be excluded from the final changelog.
• #nops For any feature that is NOP facing and needs to be in the official Release Notes for the release.
• #removed For any functionality/config that is removed.
• #updated For any functionality that is updated.
• #wip For any change that is not ready yet and external communication about it should be held off till it is feature complete.

[trunk-io]

   

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[github-actions]

✅ No conflicts with other open PRs targeting develop

[cl-sonarqube-production]

Quality Gate passed

Issues
0 New issues
3 Fixed issues
0 Accepted issues

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

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