Bump @sentry/conventions

Bump @sentry/conventions across every package.json at once, keeping the two pin styles consistent, then refresh yarn.lock.

1. Determine the target version

If the user gave a version, use it. Otherwise get the latest:

npm view @sentry/conventions version

2. Update every declared version

Find every package.json that declares @sentry/conventions (use the Grep tool so node_modules and build output are skipped automatically) and bump each to the new version. There are two pin styles, and each must keep its style:

• packages/* declare a caret range in dependencies, e.g. "^0.15.1" → "^0.16.0"
• dev-packages/* test suites declare an exact pin in devDependencies, e.g. "0.15.1" → "0.16.0"