Bump protobuf from 5.29.4 to 5.29.5 in /samples/langgraph-sql-agent

Bumps [protobuf](https://github.com/protocolbuffers/protobuf) from 5.29.4 to 5.29.5.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/protobuf_release.bzl)
- [Commits](protocolbuffers/protobuf@v5.29.4...v5.29.5)

---
updated-dependencies:
- dependency-name: protobuf
  dependency-version: 5.29.5
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

samples/langgraph-sql-agent/requirements.txt

@@ -828,14 +828,18 @@ proto-plus==1.26.1 \
     #   google-cloud-logging
     #   google-cloud-monitoring
     #   google-cloud-resource-manager
-protobuf==5.29.4 \
-    --hash=sha256:13eb236f8eb9ec34e63fc8b1d6efd2777d062fa6aaa68268fb67cf77f6839ad7 \
-    --hash=sha256:307ecba1d852ec237e9ba668e087326a67564ef83e45a0189a772ede9e854dd0 \
-    --hash=sha256:3fde11b505e1597f71b875ef2fc52062b6a9740e5f7c8997ce878b6009145862 \
-    --hash=sha256:4f1dfcd7997b31ef8f53ec82781ff434a28bf71d9102ddde14d076adcfc78c99 \
-    --hash=sha256:aec4962f9ea93c431d5714ed1be1c93f13e1a8618e70035ba2b0564d9e633f2e \
-    --hash=sha256:bcefcdf3976233f8a502d265eb65ea740c989bacc6c30a58290ed0e519eb4b8d \
-    --hash=sha256:d7d3f7d1d5a66ed4942d4fefb12ac4b14a29028b209d4bfb25c68ae172059922
+protobuf==5.29.5 \
+    --hash=sha256:3f1c6468a2cfd102ff4703976138844f78ebd1fb45f49011afc5139e9e283079 \
+    --hash=sha256:3f76e3a3675b4a4d867b52e4a5f5b78a2ef9565549d4037e06cf7b0942b1d3fc \
+    --hash=sha256:470f3af547ef17847a28e1f47200a1cbf0ba3ff57b7de50d22776607cd2ea353 \
+    --hash=sha256:63848923da3325e1bf7e9003d680ce6e14b07e55d0473253a690c3a8b8fd6e61 \
+    --hash=sha256:6cf42630262c59b2d8de33954443d94b746c952b01434fc58a417fdbd2e84bd5 \
+    --hash=sha256:6f642dc9a61782fa72b90878af134c5afe1917c89a568cd3476d758d3c3a0736 \
+    --hash=sha256:7318608d56b6402d2ea7704ff1e1e4597bee46d760e7e4dd42a3d45e24b87f2e \
+    --hash=sha256:bc1463bafd4b0929216c35f437a8e28731a2b7fe3d98bb77a600efced5a15c84 \
+    --hash=sha256:e38c5add5a311f2a6eb0340716ef9b039c1dfa428b28f25a7838ac329204a671 \
+    --hash=sha256:ef91363ad4faba7b25d844ef1ada59ff1604184c0bcd8b39b8a6bef15e1af238 \
+    --hash=sha256:fa18533a299d7ab6c55a238bf8629311439995f2e7eca5caaff08663606e9015
     # via
     #   google-api-core
     #   google-cloud-aiplatform