[release] add to CI

ci/release

@@ -0,0 +1,18 @@
+#!/bin/bash
+set -xeuo pipefail
+
+parent_ref=$(git rev-parse HEAD)
+cd "$(git rev-parse --show-toplevel)"
+./release --nosign v99.0
+trap "git tag -d v99.0; git reset --hard $parent_ref" EXIT
+
+want=" 1 file changed, 2 insertions(+), 2 deletions(-)"
+got=$(git show --shortstat HEAD | tail -1)
+
+if [[ "$want" != "$got" ]]; then
+    echo wanted:
+    echo \ \ "$want"
+    echo got:
+    echo \ \ "$got"
+    exit 1
+fi