docs: Add interested to help out checkbox (#843)

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## Description

Just adds checkboxes in the issue templates to ask the person filing the
issue if they are interested in working on it.

## Type of Change

<!--- Put an `x` in all the boxes that apply: -->

- [ ] ✨ `feat` -- New feature (non-breaking change which adds
functionality)
- [ ] 🛠️ `fix` -- Bug fix (non-breaking change which fixes an issue)
- [ ] ❌ `!` -- Breaking change (fix or feature that would cause existing
functionality to change)
- [ ] 🧹 `refactor` -- Code refactor
- [ ] ✅ `ci` -- Build configuration change
- [x] 📝 `docs` -- Documentation
- [ ] 🗑️ `chore` -- Chore

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -81,3 +81,11 @@ body:
       label: Additional context and comments
       description: |
         Anything else you want to say?
+
+  - type: checkboxes
+    id: other
+    attributes:
+      label: Other
+      options:
+        - label: I'm interested in working on a PR for this:
+

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -57,3 +57,11 @@ body:
       label: Additional context and comments
       description: |
         Anything else you want to say?
+
+  - type: checkboxes
+    id: other
+    attributes:
+      label: Other
+      options:
+        - label: I'm interested in working on a PR for this:
+