fix: case on changelog filename

Author: rrrodzilla

.github/workflows/changelog.yml

@@ -22,7 +22,7 @@ jobs:
           rm git-chglog
           git config user.name "github-actions[bot]"
           git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
-          git add ./ChANGELOG.md
+          git add ./CHANGELOG.md
           git commit -m "chore(docs): update CHANGELOG for latest tag"
           git push origin HEAD:$REF
         env: