fix: only externalize @types/ from devDependencies

[pi0]

#469 wrongly added all devDependencies as externals which is wrong (they are not shipped). this PR adds only @types/* dev deps as implicit externals which is usually desired.

[kricsleo]

Sorry, but why are @types/* in devDependencies added as implicit externals? 🤔
I think all devDependencies should not be added, otherwise causes issues like #303 (comment)

After updating to the latest unbuild, the reproduction build outputs:

import { Context } from '/home/projects/github-7jr8pu/node_modules/.pnpm/@types+aws-lambda@8.10.119/node_modules/@types/aws-lambda/index.d.ts';

declare function test(): string;

declare const halo: (e?: any, c?: Context) => any;

export { halo, test };

The Context is not bundled, which is not desirable, I guess.

Removing @types/* from externals correctly bundles the types, right? 🤔

/**
 * {@link Handler} context parameter.
 * See {@link https://docs.aws.amazon.com/lambda/latest/dg/nodejs-prog-model-context.html AWS documentation}.
 */
interface Context {
    callbackWaitsForEmptyEventLoop: boolean;
    functionName: string;
    functionVersion: string;
    invokedFunctionArn: string;
    memoryLimitInMB: string;
    awsRequestId: string;
    logGroupName: string;
    logStreamName: string;
    identity?: CognitoIdentity | undefined;
    clientContext?: ClientContext | undefined;

    getRemainingTimeInMillis(): number;

    // Functions for compatibility with earlier Node.js Runtime v0.10.42
    // No longer documented, so they are deprecated, but they still work
    // as of the 12.x runtime, so they are not removed from the types.

    /** @deprecated Use handler callback or promise result */
    done(error?: Error, result?: any): void;
    /** @deprecated Use handler callback with first argument or reject a promise result */
    fail(error: Error | string): void;
    /** @deprecated Use handler callback with second argument or resolve a promise result */
    succeed(messageOrObject: any): void;
    // Unclear what behavior this is supposed to have, I couldn't find any still extant reference,
    // and it behaves like the above, ignoring the object parameter.
    /** @deprecated Use handler callback or promise result */
    succeed(message: string, object: any): void;
}

interface CognitoIdentity {
    cognitoIdentityId: string;
    cognitoIdentityPoolId: string;
}

interface ClientContext {
    client: ClientContextClient;
    Custom?: any;
    env: ClientContextEnv;
}

interface ClientContextClient {
    installationId: string;
    appTitle: string;
    appVersionName: string;
    appVersionCode: string;
    appPackageName: string;
}

interface ClientContextEnv {
    platformVersion: string;
    platform: string;
    make: string;
    model: string;
    locale: string;
}

declare function test(): string;
declare const halo: (e?: any, c?: Context) => any;

export { halo, test };

[pi0]

I never add @types/ as normal dependencies nor (re)bundle them. If you need to explicitly bundle something you can use inlineDependencies