Update express integration to be able to ignore layers like `router` or `middleware` spans

[AbhiPrasad]

Description

https://github.com/getsentry/sentry-javascript/blob/develop/packages/node/src/integrations/tracing/express.ts

Similar to the work we did in https://github.com/getsentry/sentry-javascript/pull/16553 for Koa, we should expose ignoreLayers and ignoreLayersType from the underlying OTEL instrumentation.

https://www.npmjs.com/package/@opentelemetry/instrumentation-express

Exposed options:

Options	Type	Example	Description
ignoreLayers	IgnoreMatcher[]	[/^/_internal//]	Ignore layers that by match.
ignoreLayersType	ExpressLayerType[]	['request_handler']	Ignore layers of specified type.

ignoreLayers accepts an array of elements of types:

• string for full match of the path
• RegExp for partial match of the path
• function in the form of (path) => boolean for custom logic

ignoreLayersType accepts an array of following strings:

• router is the name of express.Router(),
• middleware
• request_handler is the name for anything that's not a router or a middleware

[AbhiPrasad]

Relevant discord thread: https://discord.com/channels/621778831602221064/1382410123372269741/1382410123372269741