chore: Create scripts/build-completions.sh

Author: koki-develop

scripts/build-completions.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+set -euo pipefail
+
+rm -rf completions
+mkdir completions
+
+go build .
+
+./clive completion bash > completions/clive.bash
+./clive completion zsh  > completions/clive.zsh
+./clive completion fish > completions/clive.fish