Patch some missed TBDs

Author: Camwyn

src/Telemetry/Data_Providers/Null_Data_Provider.php

@@ -2,7 +2,7 @@
 /**
  * A data provider that provides no data, used for testing.
  *
- * @since   TBD
+ * @since   2.1.0
  *
  * @package StellarWP\Telemetry\Data_Providers;
  */
@@ -14,7 +14,7 @@
 /**
  * Class Null_Data_Provider.
  *
- * @since   TBD
+ * @since   2.1.0
  *
  * @package StellarWP\Telemetry\Data_Providers;
  */
@@ -23,7 +23,7 @@ class Null_Data_Provider implements Data_Provider {
 	/**
 	 * {@inheritDoc}
 	 *
-	 * @since   TBD
+	 * @since   2.1.0
 	 */
 	public function get_data(): array {
 		return [];

src/Telemetry/Telemetry/Telemetry.php

@@ -390,7 +390,7 @@ protected function get_option() {
 	 * Gets the args for sending data to the telemetry server.
 	 *
 	 * @since 1.0.0
-	 * @since TBD - Updated to include the opted in user with the telemetry json.
+	 * @since 2.3.0 - Updated to include the opted in user with the telemetry json.
 	 *
 	 * @return array
 	 */