add methods necessary for preloading

[aethernet]

• Get "Fleet level Target State v3" on devices
• Get "supervisor image for version and dt" on os
• Util to list images name from a target state

Change-type: patch Signed-off-by: Edwin Joassart edwin.joassart@balena.io

See:

• Zulip preloading thread

Depends-on: https://github.com/balena-io/open-balena-api/pull/1081 Change-type: patch

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Contributor checklist

• [x] Includes tests
• [x] Includes typings
• [/] Includes updated documentation -> should be handled by CI from jsdoc
• [/] Includes updated build output -> should be handled by CI

[aethernet]

Tests are expected to fails until https://github.com/balena-io/open-balena-api/pull/1081 is merged in balena-open-api.

[aethernet]

Note: While waiting for https://github.com/balena-io/open-balena-api/pull/1081 I'm skipping the test for that method so I can use the draft published to npm for dev purposes.

[aethernet]

@thgreasi It's ready to be reviewed :)

But I'll keep it as a draft until https://github.com/balena-io/open-balena-api/pull/1081 is merged, the tests are ready but cannot pass without that PR in prod. (I ran the test against my bob and they're passing)

[aethernet]

with open-balena-api 7.13.0 the missing endpoint are now in. but we still need for the update in balena-api then release to prod env for tests to pass https://github.com/balena-io/balena-api/pull/4114

[aethernet]

The previously missing endpoint is now in production, so I turn the tests back on and from my POV this is ready for a last review then merge.

[aethernet]

I Self-Certify!