refactor: add task entry to run tests in parallel

Signed-off-by: Jérôme Benoit <[email protected]>

Author: jerome-benoit

deno.json

@@ -13,6 +13,7 @@
     "benchmark:tatami-ng:debug": "deno run -A --inspect ./benchmarks/internal/bench.mjs -t tatami-ng",
     "bundle": "deno run -A bundle.ts",
     "test": "ENVIRONMENT=test deno test -A",
+    "test:parallel": "ENVIRONMENT=test deno test -A --parallel",
     "test:coverage": "ENVIRONMENT=test deno test -A --coverage=./coverage",
     "test:debug": "ENVIRONMENT=test deno test -A --inspect",
     "coverage": "deno coverage ./coverage",