Create issue template for new releases

Inspired by Temurin's "Release Status per Platform, Version & Binary
Type" issues, e.g. adoptium/temurin#17

.github/ISSUE_TEMPLATE/---new-release.md

@@ -0,0 +1,60 @@
+---
+name: "\U0001F680 New Release Tracker"
+about: 'Create an issue to track the progress of a new Mandrel release'
+title: '<version> Release Tracker'
+labels: release
+assignees: ''
+---
+
+# Prerequisites
+
+- [x] All issues in the version's milestone are closed
+- [x] Suite files marked for release in source tree
+- [x] Version tag created
+- [ ] Corresponding GraalVM CE builds released
+- [ ] OpenJDK Temurin build required as the base-JDK is released 
+
+# Builds/Test Matrix
+
+## Builds
+
+|          | amd64    | aarch64 |
+|----------|----------|----------|
+| Linux    | :pause_button: | :pause_button: |
+| Windows  | :pause_button: | :no_entry: |
+
+## Quarkus Native Integration Tests
+
+|          | amd64    | aarch64 |
+|----------|----------|----------|
+| Linux    | :pause_button: | :pause_button: |
+| Windows  | :pause_button: | :no_entry: |
+
+## [Mandrel Integration Tests](https://github.com/Karm/mandrel-integration-tests/)
+
+|          | amd64    | aarch64 |
+|----------|----------|----------|
+| Linux    | :pause_button: | :pause_button: |
+| Windows  | :pause_button: | :no_entry: |
+
+## Legend
+
+:white_check_mark: means the activity has successfully completed.
+
+:hourglass_flowing_sand: means tests are still in progress.
+
+:no_entry: means there is no build planned for that combination.
+
+:pause_button: means the activity has not started yet.
+
+:x: means there is an issue with the build or tests of that combination.
+
+**Note:** When updating the change please use a hyperlink to make the emoji link to the corresponding CI run or GitHub issue.
+
+# Next steps
+
+- [ ] [Quarkus builder image](https://github.com/quarkusio/quarkus-images) generation
+- [ ] Notify the appropriate channels
+  - [ ] Quarkus-Dev mailing list
+  - [ ] Mandrel slack channel
+- [ ] Update sdkman's [update-mandrel.yml](https://github.com/sdkman/sdkman-disco-integration/blob/main/.github/workflows/update-mandrel.yml) on new major Mandrel or JDK release.