chore(deps): bump boto3 from 1.39.8 to 1.40.15 in /e2e_tests/python #977

Job	Run time
cdk / Check Typescript-based Dictionary Server	1m 54s
cdk / Check Python-based Book Search Server	13s
cdk / Check Python-based MCP Doc Server	2m 5s
cdk / Check Python-based Dad Jokes Server	13s
cdk / Check Python-based Inspiration Server	30s
cdk / Check Typescript-based Weather Alerts Server	1m 30s
cdk / Check Typescript-based Cognito stack	21s
cdk / Check Typescript-based Cat Facts Server	1m 32s
cdk / Check Typescript-based Dog Facts Server	1m 32s
cdk / Check Python-based Time Server	1m 56s
typescript / Check Typescript library	41s
typescript / Check Typescript E2E tests	33s
python / Check Python E2E tests	11s
typescript / Check Typescript chatbot	31s
python / Check Python library	45s
python / Check Python chatbot	11s
	14m 38s

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