Require validation for bug issue template

Author: tomschr

Diff for: .github/ISSUE_TEMPLATE/bug_report.yaml

@@ -55,6 +55,8 @@ body:
       label: Situation
       description: A clear and concise description of what the bug is.
       placeholder: Describe the problem you see...
+    validations:
+      required: true
 
   - type: textarea
     id: reproduction_steps
@@ -66,13 +68,17 @@ body:
         2. Scroll down to '....'
         3. See error
       placeholder: Describe the steps to reproduce the issue...
+    validations:
+      required: true
 
   - type: textarea
     id: expected_behavior
     attributes:
       label: Expected behavior
       description: A clear and concise description of what you expected to happen.
       placeholder: Describe the expected behavior...
+    validations:
+      required: true
 
   - type: textarea
     id: environment