Add gradle build scan (#98)

settings.gradle.kts

@@ -8,6 +8,10 @@ pluginManagement {
     }
 }
 
+plugins {
+    id("com.gradle.enterprise") version "3.6.3"
+}
+
 dependencyResolutionManagement {
     repositories {
         mavenCentral()
@@ -15,6 +19,20 @@ dependencyResolutionManagement {
     }
 }
 
+val isCI = System.getenv("CI") != null
+val skipBuildscan = System.getenv("SKIP_BUILDSCAN").toBoolean()
+gradleEnterprise {
+    buildScan {
+        termsOfServiceUrl = "https://gradle.com/terms-of-service"
+        termsOfServiceAgree = "yes"
+
+        if (isCI && !skipBuildscan) {
+            publishAlways()
+            tag("CI")
+        }
+    }
+}
+
 rootProject.name = "opentelemetry-java-contrib"
 
 include(":all")