fix: replace instanceof check with `.type` check (#1214)

.changeset/moody-feet-sit.md

.changeset/witty-windows-lick.md

packages/core/src/schema/node.ts

packages/env/src/global-check.ts

packages/env/src/index.browser.ts

packages/env/src/index.edge-light.ts

packages/env/src/index.ts

packages/env/src/utils/index.web.ts