increase upload concurrency based on cpus, adjust highWaterMark, specify compression level

packages/artifact/src/internal/shared/interfaces.ts

@@ -38,6 +38,17 @@ export interface UploadOptions {
    * input of 0 assumes default retention setting.
    */
   retentionDays?: number
+  /**
+   * The level of compression for Zlib to be applied to the artifact archive.
+   * The value can range from 0 to 9:
+   * - 0: No compression
+   * - 1: Best speed
+   * - 6: Default compression (same as GNU Gzip)
+   * - 9: Best compression
+   * Higher levels will result in better compression, but will take longer to complete.
+   * For large files that are not easily compressed, a value of 0 is recommended for significantly faster uploads.
+   */
+  compressionLevel?: number
 }
 
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