test: Run pnpm test in CI on all PRs and pushes to main (#7)

Resolves #6.

Reviewed-on: #7
Co-authored-by: Glen Whitney <glen@studioinfinity.org>
Co-committed-by: Glen Whitney <glen@studioinfinity.org>

src/number/__test__/Number.spec.js

@@ -0,0 +1,11 @@
+import assert from 'assert'
+import {Number} from '../Number.js'
+
+describe('Number Type', () => {
+   it('correctly recognizes numbers', () => {
+      assert(Number.test(3))
+      assert(Number.test(NaN))
+      assert(Number.test(Infinity))
+      assert(!Number.test("3"))
+   })
+})