chore(deps): update dependency @std/testing to ^1.0.18 (#72)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

deno.jsonc

@@ -19,7 +19,7 @@
   "imports": {
     "@cross/test": "jsr:@cross/test@^0.0.14",
     "@std/assert": "jsr:@std/assert@^1.0.19",
-    "@std/testing": "jsr:@std/testing@^1.0.0",
+    "@std/testing": "jsr:@std/testing@^1.0.18",
     "@sveltejs/kit": "npm:@sveltejs/kit@^2.5.19",
     "css-selector-extract": "npm:css-selector-extract@^4.0.1",
     "magic-string": "npm:magic-string@^0.30.11",