chore: Nits on bug report template (#7)

Values should be placeholders, not pre-filled.

Author: dionhaefner

.github/ISSUE_TEMPLATE/BUG-REPORT.yml

@@ -20,7 +20,7 @@ body:
     attributes:
       label: "Steps to reproduce"
       description: Please provide detailed steps for reproducing the issue. Include any code snippets or commands that you used when the issue occurred.
-      value: |
+      placeholder: |
         ```bash
         $ tesseract run ...
         ```
@@ -53,7 +53,7 @@ body:
     id: tesseractVersion
     attributes:
       label: Tesseract version
-      value: |
+      placeholder: |
         Paste the output of `tesseract --version` here.
     validations:
       required: true