Fix test usage and cut field index

github-packages.yml

@@ -61,9 +61,9 @@ new_pkgver:
     - grep -q "pkgrel=1" PKGBUILD
     - source ./PKGBUILD
     - 'echo "New version: ${new_pkgver}"'
-    - 'if [ "${source[0]}" == *::* ]; then
+    - 'if [[ "${source[0]}" == *::* ]]; then
           source_url="$(echo "${source[0]}" | sed "s/^.*:://")";
-          filename="$(echo "${source[0]}" | cut -d: -f0)";
+          filename="$(echo "${source[0]}" | cut -d: -f1)";
        else
           source_url="${source[0]}";
           filename="$(echo "$source_url" | rev | cut -d/ -f1 | rev)";