Add new release version to available versions in documentation [ci-skip]

Author: mpraglowski

Makefile

@@ -73,6 +73,7 @@ set-version: git-check-clean git-check-committed
 	@find . -path ./contrib -prune -o -name *.gemspec -exec sed $(SED_OPTS) "s/\(\"ruby_event_store-rspec\", \)\(.*\)/\1\"= $(RES_VERSION)\"/" {} \;
 	@sed $(SED_OPTS) "s/\(gem \"rails_event_store\", \"~>\)\(.*\)/\1 $(RES_VERSION)\"/" APP_TEMPLATE
 	@sed $(SED_OPTS) "s/[0-9]\.[0-9]*\.[0-9]/$(RES_VERSION)/" railseventstore.org/docusaurus.config.js
+	@sed $(SED_OPTS) "s/\[/[\n  \"$(RES_VERSION)\"/" railseventstore.org/versions.json
 	@sed $(SED_OPTS) "s/compare\/v.*\.\.\.master/compare\/v$(RES_VERSION)...master/" RELEASE.md
 	@sed $(SED_OPTS) "s/rails_event_store\/v.*\/APP_TEMPLATE/rails_event_store\/v$(RES_VERSION)\/APP_TEMPLATE/" netlify.toml
 	@make -j8 install-all