usql: update to 0.21.4 (#572)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: github-actions[bot]

packages/usql/static.stable.yaml

@@ -3,7 +3,7 @@ _disabled: false
 
 pkg: "usql"
 pkg_id: "xo.usql"
-pkgver: "0.20.8"
+pkgver: "0.21.4"
 pkg_type: "static"
 ghcr_pkg: "xo/usql"
 category:
@@ -34,6 +34,8 @@ tag:
   - "database"
   - "sql"
   - "cli"
+snapshots:
+  - "0.20.8"
 x_exec:
   host:
     - "x86_64-linux"