Always enable CGO in release build workflow

Author: dmartin

Diff for: .github/workflows/release.yml

@@ -66,7 +66,7 @@ jobs:
         run: |
           go get -v -t -d ./...
           mkdir bin
-          GOARCH=${arch} go build -v -ldflags "-X github.com/picoCTF/cmgr/cmgr.version=`git describe --tags`" -o bin ./...
+          CGO_ENABLED=1 GOARCH=${arch} go build -v -ldflags "-X github.com/picoCTF/cmgr/cmgr.version=`git describe --tags`" -o bin ./...
           cp LICENSE bin/LICENSE
           cat NOTICE NOTICE.release > bin/NOTICE
           cd bin && tar czvf cmgr.tar.gz cmgr cmgrd LICENSE NOTICE