📝 [maykinmedia/open-api-framework#107] Add prepare release template

Author: stevenbal

.github/ISSUE_TEMPLATE/prepare-release.md

@@ -0,0 +1,20 @@
+---
+name: Prepare release
+about: Checklist for new releases
+title: Prepare release x.y.z
+labels: ''
+type: Release
+projects: ["maykinmedia/15"]
+---
+
+- [ ] Resolve release blockers
+  - [ ] ...
+- [ ] Upgrade `open-api-framework` to latest version
+- [ ] Check security tab and upgrade packages to fix vulnerabilities
+- [ ] Check translations
+- [ ] Bump API version number (if applicable)
+  - [ ] Version bump
+  - [ ] Regenerate API spec
+  - [ ] Update READMEs with release dates + links
+- [ ] Bump version number with `bumpversion <major|minor|patch>` or `bump-my-version bump <major|minor|patch>`
+- [ ] Update changelog