Bump streamlit from 1.43.0 to 1.54.0 in /unified-search-app

Bumps [streamlit](https://github.com/streamlit/streamlit) from 1.43.0 to 1.54.0.
- [Release notes](https://github.com/streamlit/streamlit/releases)
- [Commits](streamlit/streamlit@1.43.0...1.54.0)

---
updated-dependencies:
- dependency-name: streamlit
  dependency-version: 1.54.0
  dependency-type: direct:production
...

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Author: dependabot[bot]

unified-search-app/pyproject.toml

@@ -9,7 +9,7 @@ readme = "README.md"
 requires-python = ">=3.11,<3.14"
 
 dependencies = [
-    "streamlit==1.43.0",
+    "streamlit==1.54.0",
     "azure-search-documents~=11.4",
     "azure-storage-blob~=12.20",
     "azure-identity~=1.16",