fix(indexer-framework): clap requires group name

## Description

Clap `requires` clauses refer to other flags by their field name, not
how they appear as a flag.

## Test plan

The `clickhouse-sui-indexer` example failed to run because of this
issue, and now it runs.

Author: amnn

crates/sui-indexer-alt-framework/src/lib.rs

@@ -81,7 +81,7 @@ pub struct TaskArgs {
     ///
     /// The framework ensures that tasked pipelines never commit checkpoints below the main
     /// pipeline’s pruner watermark. Requires `--reader-interval-ms`.
-    #[arg(long, requires = "reader-interval-ms")]
+    #[arg(long, requires = "reader_interval_ms")]
     task: Option<String>,
 
     /// The interval in milliseconds at which each of the pipelines on a tasked indexer should