fix: align boto3 with awscli to resolve dependency conflict

boto3 1.37.34 and awscli 1.44.38 require incompatible botocore
versions. Bump boto3 to 1.42.48 to match awscli's botocore==1.42.48
requirement. This was causing workshop bootstrap failure.

Author: Yuriy Bezsonov

infra/scripts/setup/thread-dump-lambda/requirements.txt

@@ -1,4 +1,4 @@
-boto3==1.37.34
+boto3==1.42.48
 kubernetes==32.0.1
 awscli==1.44.38
 requests==2.33.0