feat: upgrade otel-swift-core to 2.3.0 (#997)

Author: williazz

Package.resolved

@@ -29,7 +29,7 @@ let package = Package(
     .executable(name: "StableMetricSample", targets: ["StableMetricSample"])
   ],
   dependencies: [
-    .package(url: "https://github.com/open-telemetry/opentelemetry-swift-core.git", from: "2.2.0"),
+    .package(url: "https://github.com/open-telemetry/opentelemetry-swift-core.git", from: "2.3.0"),
     .package(url: "https://github.com/apple/swift-nio.git", from: "2.90.1"),
     .package(url: "https://github.com/grpc/grpc-swift.git", exact: "1.27.0"),
     .package(url: "https://github.com/apple/swift-protobuf.git", from: "1.33.3"),