chore(github): add `config.yml` file for GH issue templates
ADD
.github/ISSUE_TEMPLATE/config.yml
+blank_issues_enabled: true
+contact_links:
+ - name: Discussions
+ url: https://github.com/apiman/apiman/discussions
+ about: Propose new ideas, provide feedback, or ask for help
+

chore(github): add `config.yml` file for GH issue templates