github: make save files mandatory for new bug reports (#63366)

.github/ISSUE_TEMPLATE/bug_report.yaml

@@ -17,6 +17,20 @@ body:
     validations:
       required: true
 
+  - type: textarea
+    id: save-file
+    attributes:
+      label: Attach save file
+      description: |
+        `ESC`Main Menu -> `b`Debug Menu -> `i`Info -> `!`Generate minimized save archive
+      placeholder: |
+        Write N/A if not applicable.
+
+        - this bug report is unlikely to get resolved without a save file, unless it's trivially 
+          reproducible or the reproduction steps are complete.
+    validations:
+      required: true
+
   - type: textarea
     id: steps-to-reproduce
     attributes:
@@ -55,8 +69,7 @@ body:
     attributes:
       label: Versions and configuration
       description: |
-        The following information should consist only of the automated game report generated by the game; please put further information below.
-        To generate a report: "Main menu (ESC) > Debug Menu > Info > Generate game report".
+        `ESC`Main Menu -> `b`Debug Menu -> `i`Info -> `r`Generate game report
       placeholder: |
         - OS: [e.g. iOS 8 or Windows 10 or Ubuntu 18.04]
         - Game Version: [e.g. 0.C-29938-g90f5268437]