Merge pull request #70 from A3S-Lab/fix/legacy-relay-portable-awk-20260729

ci: keep relay checksum awk portable

Author: ZhiXiao-Lin

.github/workflows/relay-monorepo-release.yml

@@ -130,9 +130,9 @@ jobs:
             fi
             for archive in "${archives[@]}"; do
               expected="$(awk -v asset="$archive" \
-                '($2 == asset || $2 == "*" asset)
-                 && length($1) == 64 && $1 !~ /[^0-9a-f]/
-                 { digest = $1; count += 1 }
+                '($2 == asset || $2 == "*" asset) \
+                 && length($1) == 64 && $1 !~ /[^0-9a-f]/ \
+                 { digest = $1; count += 1 } \
                  END { if (count == 1) print digest }' "$checksum")"
               actual="$(sha256sum "source-assets/${archive}" | awk '{ print $1 }')"
               if [[ -z "$expected" || "$actual" != "$expected" ]]; then