fix: event emitter types with local types

[vasco-santos]

This PR fixes the current broken build job of aegir.

EventEmitter types were broken in DefinitelyTyped/DefinitelyTyped#50266. This was resulting in the following errors:

src/connection-manager/latency-monitor.js:2:1 - error TS9006: Declaration emit for this file requires using private name 'EventEmitter' from module '"events"'. An explicit type annotation may unblock declaration emit.

2 'use strict'
  ~~~~~~~~~~~~

src/connection-manager/visibility-change-emitter.js:7:1 - error TS9006: Declaration emit for this file requires using private name 'EventEmitter' from module '"events"'. An explicit type annotation may unblock declaration emit.

7 'use strict'
  ~~~~~~~~~~~~

src/index.js:1:1 - error TS9006: Declaration emit for this file requires using private name 'EventEmitter' from module '"events"'. An explicit type annotation may unblock declaration emit.

1 'use strict'
  ~~~~~~~~~~~~

src/metrics/stats.js:2:1 - error TS9006: Declaration emit for this file requires using private name 'EventEmitter' from module '"events"'. An explicit type annotation may unblock declaration emit.

2 'use strict'
  ~~~~~~~~~~~~

src/peer-store/index.js:1:1 - error TS9006: Declaration emit for this file requires using private name 'EventEmitter' from module '"events"'. An explicit type annotation may unblock declaration emit.

1 'use strict'
  ~~~~~~~~~~~~

This is a temporary fix and we should follow up in the next libp2p breaking change with #863