test: use correct file naming syntax for util-parse-env

PR-URL: #53705
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Chemi Atlow <chemi@atlow.co.il>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

test/parallel/util-parse-env.js → test/parallel/test-util-parse-env.js

@@ -52,6 +52,7 @@ const fs = require('node:fs');
     SINGLE_QUOTES_INSIDE_DOUBLE: "single 'quotes' work inside double quotes",
     SINGLE_QUOTES_SPACED: '    single quotes    ',
     SPACED_KEY: 'parsed',
+    SPACE_BEFORE_DOUBLE_QUOTES: 'space before double quotes',
     TRIM_SPACE_FROM_UNQUOTED: 'some spaced out string',
   });
 }