Prevent missing final zero of version number for docs/antora.yml
Prevent missing final zero of version number for docs/antora.yml

This PR wraps quotes as a string to prevent `1.10` from
interpreted as `1.1` for docs/antora.yml.

Without quoting, version `1.10` is interpreted as float `1.1`,
so final `0` is missing.

jmks/rubocop,rrosenblum/rubocop,bbatsov/rubocop,jmks/rubocop,tejasbubane/rubocop,bbatsov/rubocop,maxjacobson/rubocop,rrosenblum/rubocop,tejasbubane/rubocop,tejasbubane/rubocop,maxjacobson/rubocop,tdeo/rubocop,tdeo/rubocop,tdeo/rubocop,jmks/rubocop,maxjacobson/rubocop,rrosenblum/rubocop