chore: Upgrade libdatadog (#964)

## Overview
The crate `datadog-trace-obfuscation` has been renamed as
`libdd-trace-obfuscation`. This PR updates this dependency.

## Testing

Author: lym953

apm_replace_rule.rs

@@ -1,4 +1,4 @@
-use datadog_trace_obfuscation::replacer::{ReplaceRule, parse_rules_from_string};
+use libdd_trace_obfuscation::replacer::{ReplaceRule, parse_rules_from_string};
 use serde::de::{Deserializer, SeqAccess, Visitor};
 use serde::{Deserialize, Serialize};
 use serde_json;

env.rs

@@ -3,8 +3,8 @@ use serde::Deserialize;
 use std::collections::HashMap;
 use std::time::Duration;
 
-use datadog_trace_obfuscation::replacer::ReplaceRule;
 use dogstatsd::util::parse_metric_namespace;
+use libdd_trace_obfuscation::replacer::ReplaceRule;
 
 use crate::{
     config::{
@@ -900,7 +900,7 @@ mod tests {
                 )]),
                 apm_dd_url: "https://apm.datadoghq.com".to_string(),
                 apm_replace_tags: Some(
-                    datadog_trace_obfuscation::replacer::parse_rules_from_string(
+                    libdd_trace_obfuscation::replacer::parse_rules_from_string(
                         r#"[{"name":"test-tag","pattern":"test-pattern","repl":"replacement"}]"#,
                     )
                     .expect("Failed to parse replace rules"),

mod.rs

@@ -10,7 +10,7 @@ pub mod service_mapping;
 pub mod trace_propagation_style;
 pub mod yaml;
 
-use datadog_trace_obfuscation::replacer::ReplaceRule;
+use libdd_trace_obfuscation::replacer::ReplaceRule;
 use libdd_trace_utils::config_utils::{trace_intake_url, trace_intake_url_prefixed};
 
 use serde::{Deserialize, Deserializer};
@@ -772,7 +772,7 @@ pub fn deserialize_optional_duration_from_seconds_ignore_zero<'de, D: Deserializ
 #[cfg_attr(coverage_nightly, coverage(off))] // Test modules skew coverage metrics
 #[cfg(test)]
 pub mod tests {
-    use datadog_trace_obfuscation::replacer::parse_rules_from_string;
+    use libdd_trace_obfuscation::replacer::parse_rules_from_string;
 
     use super::*;
 

yaml.rs

@@ -19,11 +19,11 @@ use crate::{
     },
     merge_hashmap, merge_option, merge_option_to_value, merge_string, merge_vec,
 };
-use datadog_trace_obfuscation::replacer::ReplaceRule;
 use figment::{
     Figment,
     providers::{Format, Yaml},
 };
+use libdd_trace_obfuscation::replacer::ReplaceRule;
 use serde::Deserialize;
 
 /// `YamlConfig` is a struct that represents some of the fields in the `datadog.yaml` file.