Get the client via `sentry_sdk.get_client()` instead.

Prerequisite for #3265

Previously, we defined `ExcInfo` as `tuple[Type[BaseException] | None, BaseException | None, TracebackType | None]`, when in fact, the correct type is the narrower `tuple[Type[BaseException], BaseException, TracebackType | None] | tuple[None, None, None]`.

Rename `Transaction.finish` method's `hub` parameter to `scope` (in a backwards-compatible manner), and update the method so that it is using `Scope` API under the hood as much as possible.

Prerequisite for #3265

Make the same changes previously made to `Transaction.finish`.

Previous name said that this filter was "hub-based," when the logic in reality is not related to hubs. So, we should rename the filter to something more sensible.

We don't use this function, and since it is marked as a private method, that means we can delete it.

Use `Scope` APIs only in implementation for `sentry_sdk.init`, rather than `Hub` APIs.

Related to #3265

* Add the client cert and key support to HttpTransport

* Add a test case for the two-way ssl support in HttpTransport

* Move cert_file and key_file to the end of arguments in ClientConstructor in consts.py

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Co-authored-by: Neel Shah <[email protected]>

The current type hint suggests that all the parameters can be passed as positional arguments, when this is not the case. Only the `dsn` can be passed as a positional argument; the rest must be passed as keyword arguments.

This PR makes the type hint reflect the reality of what parameters can be passed to `sentry_sdk.init`.

All the versions we now support include `inspect.getfullargspec`, so we no longer need the backwards-compatible fallback.

MongoDB queries were being sent as invalid JSON, since the keys and values were surrounded by single quotes instead of double quotes. Relay cannot parse the queries unless they are sent as valid JSON. This PR converts MongoDB queries into a JSON string before sending it on the span, so that Relay may properly parse it and extract metrics.

…ge opt-in (#3289)

Make tiktoken encoding name configurable + tiktoken usage opt-in

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Co-authored-by: Ivana Kellyer <[email protected]>