fix type

Author: Vadman97

Sources/LaunchDarklyObservability/Plugin/Observability.swift

@@ -24,7 +24,7 @@ public final class Observability: Plugin {
         resourceAttributes[SemanticConvention.highlightProjectId] = .string(mobileKey)
         resourceAttributes[SemanticConvention.serviceName] = .string(options.serviceName)
         resourceAttributes[SemanticConvention.serviceVersion] = .string(options.serviceVersion)
-        resourceAttributes[SemanticConvention.telemetryDistroName] = "swift-launchdarkly-observability"
+        resourceAttributes[SemanticConvention.telemetryDistroName] = .string("swift-launchdarkly-observability")
         resourceAttributes[SemanticConvention.telemetryDistroVersion] = .string(sdkVersion)
 
         customHeaders[SemanticConvention.highlightProjectId] = mobileKey