build: replace use of log crate with tracing

Cargo.toml

@@ -17,7 +17,6 @@ firehose-rs = { git = "https://github.com/semiotic-ai/firehose-rs.git", branch =
 flat-files-decoder = { path = "crates/flat-files-decoder", version = "0.1.0" }
 header-accumulator = { path = "crates/header-accumulator", version = "0.1.0" }
 hex = "0.4.3"
-log = "0.4.20"
 primitive-types = "0.12.2"
 prost = "0.13.1"
 prost-build = "0.13.1"

crates/header-accumulator/Cargo.toml

@@ -11,11 +11,11 @@ base64.workspace = true
 clap.workspace = true
 ethportal-api.workspace = true
 firehose-protos.workspace = true
-log.workspace = true
 primitive-types.workspace = true
 rlp.workspace = true
 serde = { workspace = true, features = ["derive"] }
 serde_json.workspace = true
+tracing.workspace = true
 tree_hash.workspace = true
 trin-validation.workspace = true
 thiserror.workspace = true

crates/header-accumulator/src/era_validator.rs

@@ -61,7 +61,7 @@ impl EraValidator {
         if root == valid_root {
             Ok(root)
         } else {
-            log::error!(
+            tracing::error!(
                 "the valid hash is: {:?} and the provided hash was: {:?}",
                 valid_root,
                 root