Migration chokes on .d.ts files

[MonstraG]

Environment

just npx @sentry/migr8@latest,
sentry right now:
"@sentry/nextjs": "7.117.0",

Steps to Reproduce

1. have a project with .d.ts file:

declare namespace NodeJS {
	interface ProcessEnv {
		readonly FOO: string;
	}
}

Expected Result

I can migrate to v8

Actual Result

migration dies with

/index.d.ts Transformation error (A 'const' initializer in an ambient context must be a string or numeric literal or literal enum reference

I tried running it like so:
npx @sentry/migr8@latest --ingoreFilePatterns ["**/*.d.ts"]
npx @sentry/migr8@latest --ingoreFilePatterns "**/*.d.ts"
npx @sentry/migr8@latest --ingoreFilePatterns **/*.d.ts
but these broke in the same way

Also, every time I run it, I have to look at the intro messages for half a minute, can they be skipped?