Micrometer OpenTelemetry support

### Integration

sentry-spring-jakarta

### Java Version

17

### Version

7.8.0

### Steps to Reproduce

While profiling some reactive code using project Reactor with automatic context propagation and Sentry, I noticed quite a lot of time is spent instantiating `SecureRandom` objects as the `SentryReactorThreadLocalAccessor.getValue` call will always cause a new `TracesSampler` thus a new `SecureRandom` object to be created when `hub == null || hub instanceof NoOpHub` in `Sentry#getCurrentHub`.

SecureRandom objects are said to be thread-safe by the javadoc, would it be possible/safe to just reuse the same instance? Or reuse the TracesSampler? Or avoid cloning the NoOpHub alltogether..?

### Expected Result

Not so much time spent creating SecureRandom objects

### Actual Result

Screenshot of profiling results: