Remove execution permision on mystiq.svg

[elMor3no]

Please remove the exection perms on this file, is not necesary
/usr/share/icons/hicolor/scalable/apps/mystiq.svg

You can see the alert every time im try to pkg for Debian
https://salsa.debian.org/elMor3no-guest/mystiq/-/jobs/651563

Info about the issue
https://lintian.debian.org/tags/executable-not-elf-or-script.html

This executable file is not an ELF format binary, and does not start with the #! sequence that marks interpreted scripts. It might be a sh script that fails to name /bin/sh as its shell, or it may be incorrectly marked as executable. Sometimes upstream files developed on Windows are marked unnecessarily as executable on other systems.

If you are using debhelper to build your package, running dh_fixperms will often correct this problem for you.

Refer to Debian Policy Manual section 10.4 (Scripts) for details.