chore: don't show ENOENT error in console

[SoniaSandler]

When calling macadam's listVms, if there is no macadam binary found, don't show the error in the console since it is done periodically, and the error spams the logs

Closes #473

[cdrage]

Should we do it similar to podman-desktop/extension-bootc#2419 ?

Since the main issue is that it continues to init.

I believe in this PR it just ignores the error instead of fixing the init?

[SoniaSandler]

@cdrage @feloy this code already exists in the RHEL extension

podman-desktop-rhel-ext/src/macadam-init.ts

Lines 31 to 35 in 0fb5e3b

	async init(): Promise<void> {
	await this.macadam.init();
	this.#initialized = true;
	this.#onMacadamInit.emit(SIGNAL);
	}

There was no indication in the ticket regarding which OS it is, but now I see that in your bootc PR it's on Linux only.
This PR was supposed to solve what I was able to reproduce on macOS, which needed to have the macadam binary when starting, but then make it "disappear" (delete it after the extension started).
I'll also check on Linux, but since the solution from bootc already exists in the RHEL ext, I'll ping Rujuta to double check the OS and reproducing steps for this issue