build(deps): bump mcp in /src/ContentProcessorWorkflow

---
updated-dependencies:
- dependency-name: mcp
  dependency-version: 1.28.1
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

src/ContentProcessorWorkflow/pyproject.toml

@@ -22,7 +22,7 @@ dependencies = [
     "fastmcp==3.2.3",
     "jinja2==3.1.6",
     "kafka-python==2.3.0",
-    "mcp==1.25.0",
+    "mcp==1.28.1",
     "openai==2.15.0",
     "psutil==7.2.1",
     "python-multipart==0.0.31",