[utils] Don't transform numbers not starting with a zero

Fix test_Viidea and maybe others

youtube_dl/utils.py

@@ -1970,7 +1970,7 @@ def js_to_json(code):
         '(?:[^'\\]*(?:\\\\|\\['"nurtbfx/\n]))*[^'\\]*'|
         /\*.*?\*/|,(?=\s*[\]}])|
         [a-zA-Z_][.a-zA-Z_0-9]*|
-        (?:0[xX][0-9a-fA-F]+|0+[0-7]+)(?:\s*:)?|
+        \b(?:0[xX][0-9a-fA-F]+|0+[0-7]+)(?:\s*:)?|
         [0-9]+(?=\s*:)
         ''', fix_kv, code)