Fails when file has an apostrophe in the path

[AlisterH]

What the title says. e.g. it fails with: /media/Files/Photos/Mum's 50th/p1060584.jpg

[akarzim]

• Trimage version: 1.0.6
• Python version: 3.9.4
• Dependencies versions: pngcrush 1.8.13, uses libpng 1.6.32 and zlib 1.2.11
• OS: macOS (Darwin Kernel Version 20.3.0)

The bug is still present.

❯ trimage
/bin/sh: -c: line 0: unexpected EOF while looking for matching `''
/bin/sh: -c: line 1: syntax error: unexpected end of file

PS: I observe the same behaviour on Debian 11.