useful for splitting out canceled calls in metrics.

 *  New: Publish a [bill of materials (BOM)][bom] for OkHttp. Depend on this from Gradle or Maven to
    keep all of your OkHttp artifacts on the same version, even if they're declared via transitive
    dependencies. You can even omit versions when declaring other OkHttp dependencies.

    ```kotlin
    dependencies {

      signature(rootProject.libs.signature.android.apilevel24) { artifact { type = "signature" } }
    } else {
      // Everything else requires Android API 21+.
      signature(rootProject.libs.signature.android.apilevel21) { artifact { type = "signature" } }
    }

    // OkHttp requires Java 8+.
    signature(rootProject.libs.codehaus.signature.java18) { artifact { type = "signature" } }
  }

  tasks.withType<KotlinCompile> {

 *  New: Create a JPMS-compatible artifact for `JavaNetCookieJar`. Previously, multiple OkHttp
    artifacts defined classes in the `okhttp3` package, but this is forbidden by the Java module
    system. We've fixed this with a new package (`okhttp3.java.net.cookiejar`) and a new artifact,
    `com.squareup.okhttp3:okhttp-java-net-cookiehandler`. (The original artifact now delegates to
    this new one.)

    ```kotlin

        uses: gradle/actions/setup-gradle@v3

      - name: Upload Artifacts
        run: ./gradlew clean publish --stacktrace
        env:
          ORG_GRADLE_PROJECT_mavenCentralUsername: ${{ secrets.SONATYPE_NEXUS_USERNAME }}
          ORG_GRADLE_PROJECT_mavenCentralPassword: ${{ secrets.SONATYPE_NEXUS_PASSWORD }}
          ORG_GRADLE_PROJECT_signingInMemoryKey: ${{ secrets.ARTIFACT_SIGNING_PRIVATE_KEY }}

  validation:
    name: "Validation"