Tracing cleanup (#7168)

#7153
#7146
#7147
#7148 -> Thanks to @ackintosh


  This PR does the following:
1. Disable logging to file when using either `--logfile-max-number 0` or `--logfile-max-size 0`. Note that disabling the log file in this way will also disable `discv5` and `libp2p` logging.
1.  `discv5` and `libp2p` logging will be disabled by default unless running `beacon_node` or `boot_node`. This also should fix the VC panic we were seeing.
1. Removes log rotation and compression from `libp2p` and `discv5` logs. It is now limited to 1 file and will rotate based on the value of the `--logfile-max-size` flag. We could potentially add flags specifically to control the size/number of these, however I felt a single log file was sufficient. Perhaps @AgeManning has opinions about this?
1. Removes all dependency logging and references to `dep_log`.
1.  Introduces workspace filtering to file and stdout. This explicitly allows logs from members of the Lighthouse workspace, disallowing all others. It uses a proc macro which pulls the member list from cargo metadata at compile time. This might be over-engineered but my hope is that this list will not require maintenance.
1. Unifies file and stdout JSON format. With slog, the formats were slightly different. @threehrsleep worked to maintain that format difference, to ensure there was no breaking changes. If these format differences are actually problematic we can restore it, however I felt the added complexity wasn't worth it.
1. General code improvements and cleanup.

common/logging/src/tracing_libp2p_discv5_logging_layer.rs

@@ -0,0 +1,113 @@
+use chrono::Local;
+use logroller::{LogRollerBuilder, Rotation, RotationSize};
+use std::io::Write;
+use std::path::PathBuf;
+use tracing::Subscriber;
+use tracing_appender::non_blocking::{NonBlocking, WorkerGuard};
+use tracing_subscriber::{layer::Context, Layer};
+
+pub struct Libp2pDiscv5TracingLayer {
+    pub libp2p_non_blocking_writer: NonBlocking,
+    _libp2p_guard: WorkerGuard,
+    pub discv5_non_blocking_writer: NonBlocking,
+    _discv5_guard: WorkerGuard,
+}
+
+impl<S> Layer<S> for Libp2pDiscv5TracingLayer
+where
+    S: Subscriber,
+{
+    fn on_event(&self, event: &tracing::Event<'_>, _ctx: Context<S>) {
+        let meta = event.metadata();
+        let log_level = meta.level();
+        let timestamp = Local::now().format("%Y-%m-%d %H:%M:%S").to_string();
+
+        let target = match meta.target().split_once("::") {
+            Some((crate_name, _)) => crate_name,
+            None => "unknown",
+        };
+
+        let mut writer = match target {
+            "libp2p_gossipsub" => self.libp2p_non_blocking_writer.clone(),
+            "discv5" => self.discv5_non_blocking_writer.clone(),
+            _ => return,
+        };
+
+        let mut visitor = LogMessageExtractor {
+            message: String::default(),
+        };
+
+        event.record(&mut visitor);
+        let message = format!("{} {} {}\n", timestamp, log_level, visitor.message);
+
+        if let Err(e) = writer.write_all(message.as_bytes()) {
+            eprintln!("Failed to write log: {}", e);
+        }
+    }
+}
+
+struct LogMessageExtractor {
+    message: String,
+}
+
+impl tracing_core::field::Visit for LogMessageExtractor {
+    fn record_debug(&mut self, _: &tracing_core::Field, value: &dyn std::fmt::Debug) {
+        self.message = format!("{} {:?}", self.message, value);
+    }
+}
+
+pub fn create_libp2p_discv5_tracing_layer(
+    base_tracing_log_path: Option<PathBuf>,
+    max_log_size: u64,
+) -> Option<Libp2pDiscv5TracingLayer> {
+    if let Some(mut tracing_log_path) = base_tracing_log_path {
+        // Ensure that `tracing_log_path` only contains directories.
+        for p in tracing_log_path.clone().iter() {
+            tracing_log_path = tracing_log_path.join(p);
+            if let Ok(metadata) = tracing_log_path.metadata() {
+                if !metadata.is_dir() {
+                    tracing_log_path.pop();
+                    break;
+                }
+            }
+        }
+
+        let libp2p_writer =
+            LogRollerBuilder::new(tracing_log_path.clone(), PathBuf::from("libp2p.log"))
+                .rotation(Rotation::SizeBased(RotationSize::MB(max_log_size)))
+                .max_keep_files(1);
+
+        let discv5_writer =
+            LogRollerBuilder::new(tracing_log_path.clone(), PathBuf::from("discv5.log"))
+                .rotation(Rotation::SizeBased(RotationSize::MB(max_log_size)))
+                .max_keep_files(1);
+
+        let libp2p_writer = match libp2p_writer.build() {
+            Ok(writer) => writer,
+            Err(e) => {
+                eprintln!("Failed to initialize libp2p rolling file appender: {e}");
+                std::process::exit(1);
+            }
+        };
+
+        let discv5_writer = match discv5_writer.build() {
+            Ok(writer) => writer,
+            Err(e) => {
+                eprintln!("Failed to initialize discv5 rolling file appender: {e}");
+                std::process::exit(1);
+            }
+        };
+
+        let (libp2p_non_blocking_writer, _libp2p_guard) = NonBlocking::new(libp2p_writer);
+        let (discv5_non_blocking_writer, _discv5_guard) = NonBlocking::new(discv5_writer);
+
+        Some(Libp2pDiscv5TracingLayer {
+            libp2p_non_blocking_writer,
+            _libp2p_guard,
+            discv5_non_blocking_writer,
+            _discv5_guard,
+        })
+    } else {
+        None
+    }
+}