Add workflow: .github/workflows/bug-reproduction-instructions.yml

[matvix90]

Description
Short workflow that automatically adds a standard "bug reproduction instructions" checklist to new bug reports or pulls referencing bug tickets.

Why
Ensure consistent reproduction info for faster triage.

Acceptance criteria

• New workflow file created at .github/workflows/bug-reproduction-instructions.yml
• Runs on issue opened/edited and PR opened/edited when label "bug" is present
• Posts a checklist or comment linking to our bug_report template if reproduction details are missing

Testing

• Open an issue labeled "bug" without reproduction steps → workflow posts the checklist/comment.

[Ryuga-17]

@matvix90 I have created the workflow as asked, shall I create a pr?