extender-v2.6.4

What's Changed

• Health report by @ekharkunov in #407
• Add connection timeout in HealthReporterService. Fix Nan in status page. by @ekharkunov in #409
• Add GCPInstanceService which used to monitor and suspend gcp instances if instance not used for a while. by @ekharkunov in #410
• Revert "Add standalone jetifier. Run jetifier when resolve gradle dependencies." by @ekharkunov in #411
• Fix download cache size metric value. by @ekharkunov in #412

Full Changelog: extender-v2.4.0...extender-v2.6.4