package/easy-rsa: bump to version 3.0.7

Update indentation in hash file (two spaces)

https://github.com/OpenVPN/easy-rsa/releases/tag/v3.0.7



Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>