ISSUE_TEMPLATE.md: update to match main repo

.github/ISSUE_TEMPLATE.md

@@ -1,5 +1,6 @@
 #### General troubleshooting steps
 
+- [ ] I have retried my command with `--force` and the issue is still present.
 - [ ] I have checked the instructions for [reporting bugs](https://github.com/caskroom/homebrew-cask#reporting-bugs) (or [making requests](https://github.com/caskroom/homebrew-cask#requests)) before opening the issue.
   - [ ] None of the templates was appropriate for my issue, or I’m not sure.
 - [ ] I ran `brew update-reset && brew update` and retried my command.