[release] add to CI

release

@@ -1,6 +1,9 @@
 #!/bin/bash
 set -xeuo pipefail
 
+sign=(-u motiejus@jakstys.lt)
+[[ $1 == "--nosign" ]] && { sign=(); shift; }
+
 _err(){ >&2 echo "ERROR: $*"; exit 1; }
 
 git status --porcelain | grep -q "" &&
@@ -20,7 +23,7 @@ last_tag=$(git tag | tail -1)
     echo Changelog since "$last_tag":
     git log --pretty=format:"- [%an] %s" "$last_tag"..HEAD | \
         grep -v "Update release notes for $last_tag"
-} | git tag -u motiejus@jakstys.lt -F - "$1"
+} | git tag "${sign[@]}" -F - "$1"
 
 shasum=$(git archive --prefix="bazel-zig-cc-$1/" --format=tar "$1" | \
     gzip -n | sha256sum | cut -f1 -d" ")