Update Ruby SDK's documents for 4.8.0 release (#4384)

Author: st0012

src/platforms/ruby/common/configuration/integration_options.mdx

@@ -32,6 +32,7 @@ config.rails.skippable_job_adapters = ["ActiveJob::QueueAdapters::MyAdapter"]
 - `Sentry::Rails::Tracing::ActionControllerSubscriber`
 - `Sentry::Rails::Tracing::ActionViewSubscriber`
 - `Sentry::Rails::Tracing::ActiveRecordSubscriber`
+- `Sentry::Rails::Tracing::ActiveStorageSubscriber`
 
 ```ruby
 # you can add a new subscriber

src/platforms/ruby/common/configuration/options.mdx

@@ -71,6 +71,11 @@ config.breadcrumbs_logger = [:active_support_logger]
 config.breadcrumbs_logger = [:active_support_logger, :http_logger]
 ```
 
+`capture_exception_frame_locals`
+
+: Whether to capture local variables from the raised exception's frame. Default is `false`.
+
+
 `debug`
 
 : Activation of debugging mode. When enabled, SDK errors will be logged with backtrace. Default is `false`.
@@ -158,6 +163,18 @@ We guess the release intelligently in the following order of preference:
 config.sample_rate = 0.5
 ```
 
+`send_client_reports`
+
+: Attach diagnostic client reports about dropped events to an existing envelope max once every 30s. Default is `true`.
+
+This information will not be visible to users at the moment, but we're planning to add this information to user-facing UI.
+
+If you **do not** want to send this data, you can opt-out by setting
+
+```ruby
+config.send_client_reports = false
+```
+
 `send_default_pii`
 
 : When its value is `false` (default), sensitive information like