ci(dev-call): weekly Discourse post automation (#27087)

---------

Signed-off-by: FARHANG <farhang.nba@gmail.com>
Signed-off-by: Ramon Roche <mrpollo@gmail.com>
Co-authored-by: Ramon Roche <mrpollo@gmail.com>

.github/dev_call_template.md

@@ -0,0 +1,61 @@
+# PX4 Sync / Q&A - [date={{CALL_DATE}} time={{CALL_TIME}} timezone="{{CALL_TIMEZONE}}"]
+
+**This week:** {{MERGED_COUNT}} PRs merged | {{REVIEW_COUNT}} awaiting review | {{BUG_COUNT}} new bugs
+
+---
+
+## Announcements
+
+
+---
+
+## Events
+
+
+---
+
+## Dev Call Items
+
+{{DEV_CALL_ITEMS}}
+
+---
+
+## Release
+
+**Updates:**
+
+
+**Issues:**
+
+
+**Decisions:**
+
+
+---
+
+## PRs Merged This Week
+
+{{MERGED_PRS}}
+
+## PRs Awaiting Review
+
+{{REVIEW_PRS}}
+
+---
+
+## New Bug Reports
+
+{{BUG_ISSUES}}
+
+## Other New Issues
+
+{{OTHER_ISSUES}}
+
+---
+
+## Q&A
+
+
+---
+
+## Action Items