Closed issue by Stig124 on void-packages repository

https://github.com/void-linux/void-packages/issues/31318

Description:
GLIBC XFCE live fails to sign randomly, you can see the whole method in this asciinema (will add a successful signing recording when one successfully verify)
[![asciicast](https://asciinema.org/a/418512.svg)](https://asciinema.org/a/418512)

NOTE : Failed a comment in the recording, the right command is listed in the script : 

```bash
#!/bin/bash

echo "Command Used : curl -L -O --verbose https://alpha.de.repo.voidlinux.org/live/current/void-live-x86_64-20210218-xfce.iso"
curl -L -O --verbose https://alpha.de.repo.voidlinux.org/live/current/void-live-x86_64-20210218-xfce.iso

echo "Command Used : curl -L -O --verbose https://alpha.de.repo.voidlinux.org/live/current/sha256sum.sig"
curl -L -O --verbose https://alpha.de.repo.voidlinux.org/live/current/sha256sum.sig

echo "Command Used : curl -L -O --verbose https://alpha.de.repo.voidlinux.org/live/current/sha256sum.txt"
curl -L -O --verbose https://alpha.de.repo.voidlinux.org/live/current/sha256sum.txt

echo "Command Used : curl -L -O --verbose https://raw.githubusercontent.com/void-linux/void-packages/master/srcpkgs/void-release-keys/files/void-release-20210218.pub"

curl -L -O --verbose https://raw.githubusercontent.com/void-linux/void-packages/master/srcpkgs/void-release-keys/files/void-release-20210218.pub

echo "Command Used : sha256sum -c --ignore-missing sha256sum.txt"

sha256sum -c --ignore-missing sha256sum.txt

echo "Command Used : signify -C -p /etc/signify/void-release-20191109.pub -x sha256sum.sig void-GCP-musl-PLATFORMFS-20191109.tar.xz"

signify -C -p void-release-20210218.pub -x sha256sum.sig void-live-x86_64-20210218-xfce.iso

echo "Command Used : rpm -q signify"

rpm -q signify
```