[ISSUE] glow stopped displaying colors properly with a pager

[borjator <borjator@users.noreply.github.com>]

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New issue by borjator on void-packages repository

https://github.com/void-linux/void-packages/issues/35168

Description:
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### System

* xuname:  
  *Void 5.15.9_1 x86_64 GenuineIntel uptodate rFFFFF*
* package:  
  *glow-1.4.1_1*

### Expected behavior

`glow -p` displays formatted Markdown with colors in my pager (less)

### Actual behavior

It shows a lot of color codes without interpreting them:
`ESC[38;5;228;48;5;63;1mESC[0mESC[38;5;228;48;5;63;1mESC[0m  ESC[38;5;228;48;5;63;1m ESC[0mESC[38;5;228;48;5;63;1mHelloESC[0mESC[38;5;228;48;5;63;1m ESC[0mESC[38;5;252mESC[38;5;252m`

### Steps to reproduce the behavior

1. Create a simple Markdown file: `echo "# Hello" > hello.md`
2. Display it with glow with a pager: `glow -p hello.md`

I'm not completely sure if this is a glow bug since I've tried a bunch of different things:

- The previous version of _glow_
- Older versions of _less_ (my favourite pager)
- I can confirm the same happens with _most_ my second favourite pager
- I've tried to use a different terminal (_xterm_ instead of _xst_)
- I tested using a different `TERM` environment variable just in case

Anything else I could try?