feat: enable updating host labels via the control interface

[connorsmith256]

Feature or Problem

This adds two new topics to the host's control interface: wasmbus.ctl.{lattice_id}.labels.{host_id}.{put/del}. Publishing on these topics allows users to dynamically adjust the target host's labels

Related Issues

Relates to #692

Release Information

Minor bump to the control interface crate as well as the host. Functionality via wash to be added after both of the former are released

Consumer Impact

This is a potentially a step in the direction of enabling lame-duck mode on the host (we could use a special label to convey that intent)

Testing

Unit Test(s)

Acceptance or Integration

I exercised put and delete via the wasmbus tests

Manual Verification

wash get hosts -o json | jq -r '.hosts | .[] | .labels'
{
  "hostcore.arch": "aarch64",
  "hostcore.os": "macos",
  "hostcore.osfamily": "unix"
}

nats req wasmbus.ctl.default.labels.NARZ43WTEW56DC3Q42FXIND2WJV5TFVTBYJBJ2T42S5OB2AHIPITDDWW.put '{"label": "foo", "value": "bar"}'

18:31:08 Sending request on "wasmbus.ctl.default.labels.NARZ43WTEW56DC3Q42FXIND2WJV5TFVTBYJBJ2T42S5OB2AHIPITDDWW.put"
18:31:08 Received with rtt 501.459µs
{"accepted":true,"error":""}

wash get hosts -o json | jq -r '.hosts | .[] | .labels'
{
  "foo": "bar",
  "hostcore.arch": "aarch64",
  "hostcore.os": "macos",
  "hostcore.osfamily": "unix"
}

nats req wasmbus.ctl.default.labels.NARZ43WTEW56DC3Q42FXIND2WJV5TFVTBYJBJ2T42S5OB2AHIPITDDWW.del '{"label": "foo"}'

18:31:20 Sending request on "wasmbus.ctl.default.labels.NARZ43WTEW56DC3Q42FXIND2WJV5TFVTBYJBJ2T42S5OB2AHIPITDDWW.del"
18:31:20 Received with rtt 551.917µs
{"accepted":true,"error":""}

wash get hosts -o json | jq -r '.hosts | .[] | .labels'
{
  "hostcore.arch": "aarch64",
  "hostcore.os": "macos",
  "hostcore.osfamily": "unix"
}

[brooksmtownsend]

I'm happy with this, and I think the topics fit into our current structure. We may want to change them when we audit the control interface topics but that's okay

[vados-cosmonic]

LGTM 🚀