feat: add agentic workflow to update release notes based on tag diff (#186)

* Initial plan

* feat: add agentic workflow to update release notes based on tag diff

Co-authored-by: Mossaka <5447827+Mossaka@users.noreply.github.com>

* docs: improve workflow description and first release handling

Co-authored-by: Mossaka <5447827+Mossaka@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: Mossaka <5447827+Mossaka@users.noreply.github.com>

Author: Copilot

.gitattributes

@@ -1,3 +1 @@
 .github/workflows/*.lock.yml linguist-generated=true merge=ours
-
-.github/workflows/*.campaign.g.md linguist-generated=true merge=ours