Failed to create cairo scaled font

This happens with some fonts, but not all of them:

```
(process:74989): Pango-WARNING **: 10:49:09.308: failed to create cairo scaled font, expect ugly output. the offending font is 'IBM Plex Sans 12'

(process:74989): Pango-WARNING **: 10:49:09.308: font_face status is:

(process:74989): Pango-WARNING **: 10:49:09.308: scaled_font status is: out of memory

(process:74989): Pango-WARNING **: 10:49:09.309: failed to create cairo scaled font, expect ugly output. the offending font is 'IBM Plex Sans 12'

(process:74989): Pango-WARNING **: 10:49:09.309: font_face status is:

(process:74989): Pango-WARNING **: 10:49:09.309: scaled_font status is: out of memory

(process:74989): Pango-WARNING **: 10:49:09.336: failed to create cairo scaled font, expect ugly output. the offending font is 'IBM Plex Sans 12'

(process:74989): Pango-WARNING **: 10:49:09.336: font_face status is:

(process:74989): Pango-WARNING **: 10:49:09.336: scaled_font status is: out of memory
```

Can be reproduced with, for example, `font=Carlito 12`.

```
Debian 12
Mako 1.7.1-1+b1
```