Update bug report template

Author: abravalheri

.github/ISSUE_TEMPLATE/bug-report.yml

@@ -45,7 +45,12 @@ body:
 - type: input
   attributes:
     label: setuptools version
-    placeholder: For example, setuptools===60.4.2
+    placeholder: For example, setuptools===69.1.0
+    description: >-
+      Please also test with the **latest version** of `setuptools`.
+      Typically, this involves modifying `requires` in `[build-system]` of
+      [`pyproject.toml`](https://setuptools.pypa.io/en/latest/userguide/quickstart.html#basic-use),
+      not just updating `setuptools` using `pip`.
   validations:
     required: true
 - type: input