fix(deps): update dependency com.google.auth:google-auth-library-oauth2-http to v1.38.0 (open-telemetry#2178)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

gcp-auth-extension/build.gradle.kts

@@ -24,7 +24,7 @@ dependencies {
   compileOnly("io.opentelemetry:opentelemetry-exporter-otlp")
 
   // Only dependencies added to `implementation` configuration will be picked up by Shadow plugin
-  implementation("com.google.auth:google-auth-library-oauth2-http:1.37.1")
+  implementation("com.google.auth:google-auth-library-oauth2-http:1.38.0")
 
   // Test dependencies
   testCompileOnly("com.google.auto.service:auto-service-annotations")