Delete .github/ISSUE_TEMPLATE/bug_report.md

[jkrech]

Duplicate for reporting a bug.

Fixes

only offer one template for reporting a regular bug.

Changes

This changes the github repository reporting of issue but has not impact on cpackget itself

Checklist

• N/A 🤖 This change is covered by unit tests (if applicable).
• N/A 🤹 Manual testing has been performed (if necessary).
• N/A 🛡️ Security impacts have been considered (if relevant).
• N/A 📖 Documentation updates are complete (if required).
• N/A 🧠 Third-party dependencies and TPIP updated (if required).

[soumeh01]

LGTM