fix: multi model embedding (#1215)

.changeset/sour-snakes-fry.md

packages/core/src/embeddings/base.ts

packages/core/src/embeddings/index.ts

packages/core/src/embeddings/muti-model.ts

packages/llamaindex/e2e/fixtures/img/llamaindex-white.png

packages/llamaindex/e2e/node/embedding/clip.e2e.ts

packages/llamaindex/src/embeddings/ClipEmbedding.ts

...es/llamaindex/src/embeddings/CloudflareWorkerEmbedding.ts

packages/llamaindex/src/embeddings/JinaAIEmbedding.ts

packages/llamaindex/src/embeddings/index.ts