Replace tracing::debug! with debug! same for other levels (#8300)

Just visual clean-up, making logging statements look uniform. There's no reason to use `tracing::debug` instead of `debug`. If we ever need to migrate our logging lib in the future it would make things easier too.


  


Co-Authored-By: dapplion <35266934+dapplion@users.noreply.github.com>

Co-Authored-By: Jimmy Chen <jchen.tc@gmail.com>

Co-Authored-By: Michael Sproul <michaelsproul@users.noreply.github.com>

beacon_node/lighthouse_network/src/types/globals.rs

@@ -9,7 +9,7 @@ use network_utils::enr_ext::EnrExt;
 use parking_lot::RwLock;
 use std::collections::HashSet;
 use std::sync::Arc;
-use tracing::error;
+use tracing::{debug, error};
 use types::data_column_custody_group::{compute_subnets_from_custody_group, get_custody_groups};
 use types::{ChainSpec, ColumnIndex, DataColumnSubnetId, EthSpec};
 
@@ -79,7 +79,7 @@ impl<E: EthSpec> NetworkGlobals<E> {
             sampling_subnets.extend(subnets);
         }
 
-        tracing::debug!(
+        debug!(
             cgc = custody_group_count,
             ?sampling_subnets,
             "Starting node with custody params"