Adds progress bar to VertexAIEmbeddings (#14542)
- **Description:** Adds progress bar to VertexAIEmbeddings
- **Issue:** related issue
https://github.com/langchain-ai/langchain/issues/13637
Signed-off-by: ugm2 <unaigaraymaestre@gmail.com>
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Signed-off-by: ugm2 <unaigaraymaestre@gmail.com>
