Express types should be included in dependencies #2409
Description
In the last 4.2.0 version, we encounter some types issues during build:
node_modules/.pnpm/@[email protected]/node_modules/@slack/bolt/dist/receivers/ExpressReceiver.d.ts:9:98 - error TS7016: Could not find a declaration file for module 'express'. '/usr/app/node_modules/.pnpm/[email protected]/node_modules/express/index.js' implicitly has an 'any' type.
node_modules/.pnpm/@[email protected]/node_modules/@slack/bolt/dist/receivers/ParamsIncomingMessage.d.ts:3:39 - error TS2307: Cannot find module 'express-serve-static-core' or its corresponding type declarations.
Indeed, the @types/express package has been moved to devDependencies recently, but these types should have been stayed in dependencies since the generated d.ts files need them.