Implement custom OpenTelemetry sampler to filter uninstrumented traces (#8647)

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

Cargo.lock

@@ -1234,7 +1234,6 @@ dependencies = [
  "int_to_bytes",
  "itertools 0.10.5",
  "kzg",
- "lighthouse_tracing",
  "lighthouse_version",
  "logging",
  "lru 0.12.5",
@@ -4224,7 +4223,6 @@ dependencies = [
  "health_metrics",
  "hex",
  "lighthouse_network",
- "lighthouse_tracing",
  "lighthouse_version",
  "logging",
  "lru 0.12.5",
@@ -5406,7 +5404,6 @@ dependencies = [
  "futures",
  "initialized_validators",
  "lighthouse_network",
- "lighthouse_tracing",
  "lighthouse_version",
  "logging",
  "malloc_utils",
@@ -5427,6 +5424,7 @@ dependencies = [
  "tracing",
  "tracing-opentelemetry",
  "tracing-subscriber",
+ "tracing_samplers",
  "types",
  "validator_client",
  "validator_dir",
@@ -5488,10 +5486,6 @@ dependencies = [
  "unsigned-varint",
 ]
 
-[[package]]
-name = "lighthouse_tracing"
-version = "0.1.0"
-
 [[package]]
 name = "lighthouse_validator_store"
 version = "0.1.0"
@@ -6175,7 +6169,6 @@ dependencies = [
  "kzg",
  "libp2p",
  "lighthouse_network",
- "lighthouse_tracing",
  "logging",
  "lru_cache",
  "matches",
@@ -9356,6 +9349,14 @@ dependencies = [
  "tracing-serde",
 ]
 
+[[package]]
+name = "tracing_samplers"
+version = "0.1.0"
+dependencies = [
+ "opentelemetry",
+ "opentelemetry_sdk",
+]
+
 [[package]]
 name = "tree_hash"
 version = "0.12.0"