UI: Guard against nodes running an old version of the Nomad agent

[DingoEatingFuzz]

Fixes #9702

If a cluster has nodes running a version of Nomad <0.9.0, they won't have the requisite NodeResources property. Instead of blowing up, now the UI will filter those nodes out of the viz and report the situation to the user.

[github-actions]

Ember Asset Size action

As of 37e1551

Files that got Bigger 🚨:

File	raw	gzip
nomad-ui.js	+1.83 kB	+406 B

Files that stayed the same size 🤷‍:

File	raw	gzip
vendor.js	0 B	0 B
nomad-ui.css	0 B	0 B
vendor.css	0 B	0 B

[github-actions]

Ember Test Audit comparison

	master	37e1551	change
passes	1542	1544	+2
failures	0	0	0
flaky	0	0	0
duration	8m 18s 301ms	8m 25s 607ms	+07s 306ms

[backspace]

Looks good, I’m guessing your screenshot is slightly stale given the absence of the count? 🤓

[DingoEatingFuzz]

Ha, yes. Good eye.

[github-actions]

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