Merge pull request #877 from microsoft/dependabotFix-az

chore: dependabot vulnerability fix

Author: Roopan-Microsoft

src/backend/pyproject.toml

@@ -13,7 +13,7 @@ dependencies = [
     "azure-monitor-events-extension==0.1.0",
     "azure-monitor-opentelemetry==1.8.5",
     "azure-search-documents==11.5.3",
-    "fastapi==0.116.1",
+    "fastapi==0.135.2",
     "openai==2.16.0",
     "opentelemetry-api==1.39.0",
     "opentelemetry-exporter-otlp-proto-grpc==1.39.0",
@@ -39,6 +39,6 @@ dependencies = [
     "protobuf==5.29.6",
     "cryptography==46.0.5",
     "aiohttp==3.13.3",
-    "pyasn1==0.6.2",
-    "nltk==3.9.3",
+    "pyasn1==0.6.3",
+    "nltk==3.9.4",
 ]