feat: add option to disable update check

[Chaostheorie]

This adds an arg to toggle the update check. The default is set to true to retain the old behaviour.

[Inrixia]

What's the rationale behind adding this?

[Chaostheorie]

I personally do not want to ping GitHub on every startup, that's about it. It also led to some issues while packaging it within a nix sandbox.

[Inrixia]

Have you verified the argument is working for you with a build running this fork?

[Chaostheorie]

Yes, I did, the patch below with sanityCheck=true and updateCheck=false can be used to verify it with some output too,

diff --git i/src/float.ts w/src/float.ts
index c184afe..bc48a66 100644
--- i/src/float.ts
+++ w/src/float.ts
@@ -74,6 +74,8 @@ process.on("SIGTERM", () => process.exit(143));
 					latest.version
 				}.\nHead to {cyanBright https://github.com/Inrixia/Floatplane-Downloader/releases} to update!\n`,
 			);
+	} else {
+		console.log("skipped update");
 	}

 	if (args.sanityCheck) {

[Inrixia]

Lgtm

[Inrixia]

Ah ugh, I forgot to check the branch. In the future please pr to the dev branch not master. I'll fix it

[Chaostheorie]

Thank you for the quick merge/review. I'll keep the branch rules in mind for my next PR.