Implement upload_file endpoint

[ykeremy]

"Uploads to:\n\ns3://skyvern-uploads/<ENV>/<ORG_ID>/<TODAY'S DATE>/<UUID>_<FILENAME>\nEx:\ns3://skyvern-uploads/local/o_221157791538210890/2024-07-03/2e95b6fd-9dd6-4c1b-a79f-0e8a24ab14c5_cat.avif\n\n

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:rocket:	This description was created by Ellipsis for commit 5f74f113cb8038b8dd8e6ef643e3e6d220d9a6b6

Summary:

Added upload_file endpoint to upload files to S3 with file size validation and presigned URL generation.

Key points:

• Added upload_file endpoint in skyvern/forge/sdk/routes/agent_protocol.py to upload files to S3.
• Endpoint uploads file to s3://<bucket>/<env>/<org_id>/<date>/<uuid>_<filename>.
• Returns S3 URI and presigned URL for the uploaded file.
• Added aws_client initialization in skyvern/forge/sdk/api/aws.py.
• Removed AsyncAWSClient initialization from skyvern/forge/app.py.
• Handles file reading, S3 upload, and presigned URL generation.
• Added aws_client.upload_file_stream method in skyvern/forge/sdk/api/aws.py to handle file stream uploads.
• Added validate_file_size function in skyvern/forge/sdk/routes/agent_protocol.py to check file size before upload.
• Updated skyvern/config.py to include MAX_UPLOAD_FILE_SIZE configuration.
• Example S3 path: s3://skyvern-uploads/<ENV>/<ORG_ID>/<TODAY'S DATE>/<UUID>_<FILENAME>

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Generated with :heart: by ellipsis.dev

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