updated opentelemetry version to 1.28.0

Signed-off-by: Pratik Mankawde <3397372+pratikmankawde@users.noreply.github.com>

conan.lock

@@ -10,7 +10,7 @@
         "rocksdb/10.5.1#4a197eca381a3e5ae8adf8cffa5aacd0%1782392413.075713",
         "re2/20251105#8579cfd0bda4daf0683f9e3898f964b4%1782392402.431897",
         "protobuf/6.33.5#ff253ead763bd8d9904a52979cd21e81%1782392410.233933",
-        "opentelemetry-cpp/1.26.0#9d81768342c78cb897345fd419b358d2%1776934712.672",
+        "opentelemetry-cpp/1.28.0#2cbf71db4e0e0535df20be305005cb2f%1785939947.292581",
         "openssl/3.6.3#f806de8933e3bf6f01016c6a888cee2e%1783945160.863288",
         "nudb/2.0.9#11149c73f8f2baff9a0198fe25971fc7%1782392402.297166",
         "nlohmann_json/3.11.3#45828be26eb619a2e04ca517bb7b828d%1701220705.259",

conanfile.py

@@ -150,7 +150,7 @@ class Xrpl(ConanFile):
         # OpenTelemetry C++ SDK for distributed tracing (optional).
         # Provides OTLP/HTTP exporter, batch span processor, and trace API.
         if self.options.telemetry:
-            self.requires("opentelemetry-cpp/1.26.0")
+            self.requires("opentelemetry-cpp/1.28.0")
         self.requires("xxhash/0.8.3", transitive_headers=True)
 
     exports_sources = (

docs/build/telemetry.md

@@ -59,7 +59,7 @@ cd .build
 
 #### Install dependencies
 
-The `telemetry` option adds `opentelemetry-cpp/1.26.0` as a dependency.
+The `telemetry` option adds `opentelemetry-cpp/1.28.0` as a dependency.
 If the Conan lockfile does not yet include this package, bypass it with `--lockfile=""`.
 
 ```bash
@@ -112,7 +112,7 @@ The resulting binary is identical to one built before telemetry support was adde
 
 ### Conan lockfile error
 
-If you see `ERROR: Requirement 'opentelemetry-cpp/1.26.0' not in lockfile 'requires'`,
+If you see `ERROR: Requirement 'opentelemetry-cpp/1.28.0' not in lockfile 'requires'`,
 the lockfile was generated without the telemetry dependency.
 Pass `--lockfile=""` to bypass the lockfile, or regenerate it with telemetry enabled.