Bump protobuf from 5.26.1 to 5.29.5 in /contract-tests/images/mock-collector (#404)

Author: dependabot[bot]

contract-tests/images/mock-collector/pyproject.toml

@@ -13,7 +13,7 @@ dependencies = [
     "grpcio ~= 1.66.0",
     "opentelemetry-proto==1.33.1",
     "opentelemetry-sdk==1.33.1",
-    "protobuf==5.26.1",
+    "protobuf==5.29.5",
     "typing-extensions==4.12.2"
 ]
 

contract-tests/images/mock-collector/requirements.txt

@@ -1,5 +1,5 @@
 grpcio==1.66.2
 opentelemetry-proto==1.33.1
 opentelemetry-sdk==1.33.1
-protobuf==5.26.1
+protobuf==5.29.5
 typing-extensions==4.12.2