test: migrate to vitest (#380)

Co-authored-by: Jeroen Claassens <support@favware.tech>

Author: imranbarbhuiya

.github/workflows/continuous-integration.yml

@@ -49,7 +49,7 @@ jobs:
       - name: Build test dependencies
         run: yarn turbo run build --filter=@sapphire/async-queue --filter=@sapphire/*utilities --filter=@sapphire/ratelimits --filter=@sapphire/fetch --no-deps
       - name: Run tests
-        run: yarn test:coverage
+        run: yarn test
       - name: Store code coverage report
         if: ${{ matrix.node == '18' }}
         uses: actions/upload-artifact@3cea5372237819ed00197afe530f5a7ea3e805c8 # tag=v3