Missing Transactions in Sentry Dashboard

### Issue Description

Transactions are no longer visible on the Sentry dashboard. Previously, transaction data was being recorded and displayed correctly, but it has recently stopped appearing. Errors are still being captured as expected; only transactions are missing.

### Reproduction Steps

Idk

### Expected Behavior

Transaction should be recorded and displayed correctly on the Sentry dashboard

### Actual Behavior

Transactions are not visible on the Sentry dashboard, while error events are still being captured and displayed correctly

### Ruby Version

3.0.1

### SDK Version

6.5.0

### Integration and Its Version

rails 6.1.5

### Sentry Config

```ruby
Sentry.init do |config|
config.dsn = ENV["SENTRY_DSN"]
config.breadcrumbs_logger = [:active_support_logger, :http_logger]
config.enabled_environments = ['production', 'staging']

config.traces_sample_rate = 1.0
config.traces_sampler = lambda do |context|
true
end

config.enable_logs = true
end
```