github-cli: use GH_VERSION to make sure our binary is properly versioned

packages/dev-util/github-cli/github-cli-1.11.0.exheres-0

@@ -23,6 +23,7 @@ BUGS_TO="hasufell@posteo.de"
 src_compile() {
     export GOPATH="${WORK}"/.gopath
     export GOBIN="${WORK}"/.bin
+    export GH_VERSION="v${PV}"
     unset LDFLAGS
 
     esandbox disable_net