Enable sha256sum instead of md5sum

Author: codemedic

.github/workflows/release.yaml

@@ -25,3 +25,5 @@ jobs:
         extra_files: chimes LICENSE README.md
         pre_command: apt update && apt install -y pkg-config clang libasound2-dev && export CGO_ENABLED=1 CC_FOR_darwin_amd64=clang CXX_FOR_darwin_amd64=clang++
         ldflags: -X main.build=${{ github.ref_name }}
+        sha256sum: TRUE
+        md5sum: FALSE