TranslatorSpec: Python: fix translation of array literals where all e…

…lements between 0 and 255

Fixes

[info] - python:[255, 0, 255] *** FAILED ***
[info]   "b"\[xFF\x00\xFF]"" was not equal to "b"\[255\000\255]"" (TranslatorSpec.scala:319)
[info]   Analysis:
[info]   "b"\[xFF\x00\xFF]"" -> "b"\[255\000\255]""

jvm/src/test/scala/io/kaitai/struct/translators/TranslatorSpec.scala

@@ -335,7 +335,7 @@ class TranslatorSpec extends AnyFunSpec {
         LuaCompiler -> "\"\\255\\000\\255\"",
         PerlCompiler -> "pack('C*', (255, 0, 255))",
         PHPCompiler -> "\"\\xFF\\x00\\xFF\"",
-        PythonCompiler -> "b\"\\255\\000\\255\"",
+        PythonCompiler -> "b\"\\xFF\\x00\\xFF\"",
         RubyCompiler -> "[255, 0, 255].pack('C*')"
       ))
     }