[remote] Support download of native dependencies

[jonah-iden]

What it does

This is a part of the Remote SSH feature #12390.
This PR is supposed to solve the problem of needing different native dependencies when copying the backend to a remote machine with a different OS or cpu-architecture.
As discussed in the theia-dev meeting on 6.6.23 these nativ dependencies should be included as assets in the respective theia release.

How to test

Its kind of hard to test since the rest of the feature is not yet integrated or used by anything.

The Github Actions workflow file is also deployed here for testing.
For testing the download contributions, it's probably easiest to create a small BackendApplicationContribution in the remote package and execute the NativeDependencyDownloadService downloadDependencies in onStart() in there like this:

@injectable()
export class TestBackendContrib implements BackendApplicationContribution {
    @inject(DependencyDownloadService) service: DependencyDownloadService;
    onStart(): void {
        this.service.downloadDependencies(`${process.platform}-${process.arch}`);
    }
}

After that at least for rigrep (all other dependencies are not yet deployed so yet so it kind of download the website). Through debugging you could see that they are downloaded. or maybe writing the to the file system

Review checklist

• As an author, I have thoroughly tested my changes and carefully followed the review guidelines

Reminder for reviewers

• As a reviewer, I agree to behave in accordance with the review guidelines

[msujew]

We've decided to integrate this change directly into #12618. I'll close this PR in favor of the other one.