snippets/luasnip: add changelog entry

Author: LilleAila

docs/release-notes/rl-0.8.md

@@ -51,3 +51,5 @@
 
 - Remove `vim.notes.obsidian.setupOpts.dir`, which was set by default. Fixes
   issue with setting the workspace directory.
+- Add `vim.snippets.luasnip.setupOpts`, which was previously missing.
+- Add a trigger event for luasnip lazy-loading