Update tensorflow_issue_template.yaml

.github/ISSUE_TEMPLATE/tensorflow_issue_template.yaml

@@ -23,13 +23,17 @@ body:
       value: |
         Please make sure that this is a bug. As per our [GitHub Policy](https://github.com/tensorflow/tensorflow/blob/master/ISSUES.md),we only address code/doc bugs, performance issues, feature requests and build/installation issues on GitHub.
 
-  - type: checkboxes
-    id: cat-preferences
+  - type: dropdown
+    id: tf-nightly
     attributes:
       label: Have you reproduced the bug with TF nightly?
       description: It is strongly suggested that you have reproduced the bug with [TF nightly](https://www.tensorflow.org/install/pip#nightly)
       options:
-          required: true
+        - "Yes"
+        - "No"
+    validations:
+      required: true
+          
   - type: markdown
     attributes:
       value: | 
@@ -45,6 +49,7 @@ body:
         - binary
     validations:
       required: true
+      
   - type: input
     id: tfversion
     attributes: