🏗️(bin) merge duplicated folders scripts and bin

Few scripts were duplicated between the scripts and the bin folders.
Reorganize the scripts in a common folder, and align filenames to
follow the same rule.

scripts/updatekeys.sh

@@ -1,3 +0,0 @@
-#!/bin/bash
-
-find . -name "*.enc.*" -exec sops updatekeys -y {} \;