released sha256sum have the wrong path in it

[skutcher]

The uploaded release files sha256sums uses the pathes of the build scripts. Therefor automatic sha256sum checks failed

$  cat defichain-4.1.1-x86_64-pc-linux-gnu.tar.gz.sha256
6996c434dd4e2467c2b5b905d141a05b44045a02ef9aa1c9719ba117bb5a0d65  /__w/ain/ain/build/defichain-4.1.1-x86_64-pc-linux-gnu.tar.gz

so cause of this after downloading
$ sha256sum -c defichain-4.1.1-x86_64-pc-linux-gnu.tar.gz.sha256
throws a not found error

expected

$  cat defichain-4.1.1-x86_64-pc-linux-gnu.tar.gz.sha256
6996c434dd4e2467c2b5b905d141a05b44045a02ef9aa1c9719ba117bb5a0d65 defichain-4.1.1-x86_64-pc-linux-gnu.tar.gz

[skutcher]

duplicate of #2740