docs: correct provide(s) typo in error (yeoman#569)

* docs: correct provide(s) typo in error

* Update environment.js

---------

Co-authored-by: Marcelo Shima <[email protected]>

Author: JoshuaKGoldberg

src/store.ts

@@ -200,7 +200,7 @@ export default class Store {
   private _getGenerator(module: any, meta: BaseGeneratorMeta) {
     const Generator = module.default?.default ?? module.default ?? module;
     if (typeof Generator !== 'function') {
-      throw new TypeError("The generator doesn't provides a constructor.");
+      throw new TypeError("The generator doesn't provide a constructor.");
     }
 
     Object.assign(Generator, meta);

test/environment.js

@@ -463,7 +463,7 @@ for (const generatorVersion of allVersions) {
         return this.env.run('no-constructor:app').then(
           () => assert.fail(),
           error => {
-            expect(error.message).toMatch('provides a constructor');
+            expect(error.message).toMatch('provide a constructor');
           },
         );
       });