build(deps): update boto3 requirement in /lambdas/pdf-extract (#185)

lambdas/pdf-extract/requirements.txt

@@ -1,3 +1,3 @@
 pdfplumber>=0.11.10,<1.0
-boto3>=1.43.34,<2.0
+boto3>=1.43.40,<2.0
 httpx>=0.28.1,<1.0

lambdas/pdf-generate/requirements.txt

@@ -1,3 +1,3 @@
 reportlab>=5.0.0,<6.0
-boto3>=1.43.34,<2.0
+boto3>=1.43.40,<2.0
 httpx>=0.28.1,<1.0

lambdas/suggestions/requirements.txt

@@ -1,2 +1,2 @@
-boto3>=1.43.34,<2.0
+boto3>=1.43.40,<2.0
 httpx>=0.28.1,<1.0