Cli: Fixes #10992: Disable deprecation warning when running Joplin from CLI

[pedr]

Fixes #10992

Summary

The change is to add a flag to the shebang line that should hide all warning when the main.js file is run directly (aka $: ./main.js), but it shouldn't affect when running in dev mode (yarn start).

I took more time to fix this than it was probably necessary because at first I was testing the modification running node ./build/main.js version which ignored the shebang line.

The depreciation warning started to appear when running the CLI with Node.js version >21 where punycode std lib is being deprecated but it is still used by a lot of our dependencies.

Testing

• Open packages/app-cli
• Run yarn build
• Run ./build/main.js version
• It should printout the app-cli version without showing the deprecation warning

Dev environment should still print the warning:

• Run yarn start version on packages/app-cli
• It should printout the app-cli but also the deprecation warning