fix: properly cleanup /tmp

Author: GarciaLnk

build_scripts/clean-stage.sh

@@ -13,13 +13,13 @@ fi
 
 # shellcheck disable=SC2114
 rm -rf /.gitkeep \
+	/tmp/* \
 	/var/tmp/* \
 	/var/lib/{dnf,rhsm} \
 	/var/cache/* \
-	/boot \
-	/tmp
+	/boot
 
-mkdir -p /boot /tmp
+mkdir -p /boot
 
 find /var/log -type f -exec bash -c '[ -s "$1" ] && rm "$1"' _ {} \;
 find /var/* -maxdepth 0 -type d \! -name cache -exec rm -fr {} \;