Upgrade h11 dependency (Azure-Samples#2596)

Author: pamelafox

app/backend/requirements.txt

@@ -1,5 +1,5 @@
 # This file was autogenerated by uv via the following command:
-#    uv pip compile requirements.in -o requirements.txt
+#    uv pip compile requirements.in -o requirements.txt --python-version 3.9
 aiofiles==24.1.0
     # via
     #   prompty
@@ -111,7 +111,7 @@ frozenlist==1.4.1
     # via
     #   aiohttp
     #   aiosignal
-h11==0.14.0
+h11==0.16.0
     # via
     #   httpcore
     #   hypercorn
@@ -123,9 +123,9 @@ h2==4.1.0
     #   hypercorn
 hpack==4.0.0
     # via h2
-httpcore==1.0.5
+httpcore==1.0.9
     # via httpx
-httpx[http2]==0.27.0
+httpx==0.27.0
     # via
     #   microsoft-kiota-http
     #   msgraph-core
@@ -344,7 +344,7 @@ pydantic-core==2.20.1
     # via pydantic
 pygments==2.18.0
     # via rich
-pyjwt[crypto]==2.10.1
+pyjwt==2.10.1
     # via
     #   -r requirements.in
     #   msal