Update etl to 20.39.1 (#4862)

packages/e/etl/xmake.lua

@@ -7,6 +7,7 @@ package("etl")
     add_urls("https://github.com/ETLCPP/etl/archive/refs/tags/$(version).tar.gz",
              "https://github.com/ETLCPP/etl.git")
 
+    add_versions("20.39.1", "3fb193011450d5d25b9b221d68f74b9baa970c7fb03ff03426cad56fdead93d6")
     add_versions("20.38.17", "5b490aca3faad3796a48bf0980e74f2a67953967fad3c051a6d4981051cb0b9a")
     add_versions("20.38.16", "6d05e33d6e7eb2c8d4654c77dcd083adc70da29aba808f471ba7c6e2b8fcbf03")
     add_versions("20.38.13", "e606083e189a8fe6211c30c8c579b60c29658a531b5cafbb511daab1a2861a69")