Release 4.9.0

What's Changed

• ONPREM-2370 | Using token while calling Metadata endpoint by @atulsingh0 in #238
• ONPREM-2273 | Remove option to disable mtls in GCP Nomad by @atulsingh0 in #239
• ONPREM-2273 | Remove option to disable mTLS in nomad-aws by @atulsingh0 in #240
• feat: Retry apt operations up to 5 times by @ryanwohara in #241
• ONPREM-2268 | Enable https when using External Nomad Server by @atulsingh0 in #242
• ONPREM-2268 | exposing output value of Nomad client cert by @atulsingh0 in #243
• ONPREM-2522 | remove icmp allow rule from firewall by @atulsingh0 in #244
• ONPREM-2528 | expose nomad server image family by @atulsingh0 in #245
• ONPREM-2528 | update docker ce version by @atulsingh0 in #246
• update docker version in gcp nomad by @soulchips in #247
• fixing healthchecks for nomad instances by @soulchips in #248
• ONPREM-2715 | Adding "-o11y-format" for better docker-gc logs by @atulsingh0 in #250
• Update nomad-startup.sh.tpl by @soulchips in #249
• updating install script for gcp by @soulchips in #251
• adding "installing docker" echo by @soulchips in #252
• [ONPREM-2719] Restore support of self_links for subnetwork/network in nomad-gcp by @christian-stephen in #253
• ONPREM-2450 | Enabling mTLS communication when using External Nomad Servers by @atulsingh0 in #256
• ONPREM-2768 | Exposing nomad clients cert as well by @atulsingh0 in #257
• ONPREM-2768 | fix private key mapping by @atulsingh0 in #258
• ONPREM-2768 | update output msg by @atulsingh0 in #259
• ONPREM-2784 | update example & readme by @atulsingh0 in #260
• update NOMAD_ADDR env var by @atulsingh0 in #261
• ONPREM-2767 | use https for healthcheck by @atulsingh0 in #262

Full Changelog: 4.8.0...4.9.0