treewide: Remove execute bit from .nix and .patch files

Signed-off-by: Felix Singer <felixsinger@posteo.net>

Changed files
pkgs
by-name
do
dotherside
mc
sc
scap-security-guide
development
python-modules
compliance-trestle
datamodel-code-generator
servers
home-assistant
custom-lovelace-modules
vacuum-card
pkgs/by-name/do/dotherside/package.nix
pkgs/by-name/mc/mcrypt/malloc_to_stdlib.patch
pkgs/by-name/sc/scap-security-guide/package.nix
pkgs/development/python-modules/compliance-trestle/default.nix
pkgs/development/python-modules/datamodel-code-generator/default.nix
pkgs/servers/home-assistant/custom-lovelace-modules/vacuum-card/package.nix