Tor Browser Integration: Dependency Update Rules

Dropping wasm for Tor browser integration is being discussed here: tor-browser#43096

Trying to pull the lox crates into Tor browser directly has revealed some [dependency conflicts](tpo/applications/tor-browser#43096 (comment 3129660)) and vetting issues that should be resolved. Currently renovate bot attempts to update all dependencies as soon as they are released. This will mostly be a problem for lox-library and lox-utils since the integration with Tor browser may cause conflicts with mozilla's dependencies. However, it may be worth re-considering how aggressively we want to update dependencies in general and the conditions under which we should be notified of updates from renovate bot and whether those can be automated/set in the renovate.json file. As a start, we can set renovate.json to ignore the dependencies specifically tagged in !283