CloudBees Support Plugin 3.12

CloudBees Internal Ticket: CJP-7651

Automatically generate a support bundle when no HTTP worker threads are available.

CloudBees Internal Ticket: CJP-7669

Log a warning when no HTTP worker threads are available.

CloudBees Internal Ticket: CJP-7556

Add an administrative monitor to check whether Jenkins is using a proxy but hudson.TcpSlaveAgentListener.hostName is not configured.

CloudBees Internal Ticket: CJP-7839

Fix the unrestricted API call administrative monitor so that all calls without the tree parameter contribute towards activating the monitor.

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