fix(ci): keep latest 2 releases instead of 3, clean up .releases-repo in always step

.gitea/workflows/build-iso.yaml

@@ -251,7 +251,7 @@ jobs:
             fi
           fi
 
-      - name: Keep only latest 3 releases
+      - name: Keep only latest 2 releases
         if: success()
         env:
           GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
@@ -268,7 +268,7 @@ jobs:
               "$GITEA_API/repos/$repo/releases" \
               | jq -er 'sort_by(.created_at) | .[].id')
 
-            to_delete=$(( ${#ids[@]} - 3 ))
+            to_delete=$(( ${#ids[@]} - 2 ))
             if (( to_delete > 0 )); then
               for ((i = 0; i < to_delete; i++)); do
                 id=${ids[$i]}
@@ -297,7 +297,7 @@ jobs:
           $PRIV losetup -D || true
 
           # Remove working directories with proper permissions
-          $PRIV rm -rf "$PWD/work"
+          $PRIV rm -rf "$PWD/work" "$PWD/.releases-repo"
 
       - name: Remove built ISO
         if: always()