fix(tool-runtime): Remove authorization from list_runtime_tools in all providers

Updated all tool runtime provider implementations to remove the authorization
parameter from list_runtime_tools():

- tavily_search.py
- brave_search.py
- wolfram_alpha.py
- bing_search.py

These providers were missing in the previous commit. Tool listing typically
doesn't require authentication - only invoke_tool() needs the authorization
parameter for authenticated tool execution.

This ensures all tool runtime providers have consistent signatures matching
the updated protocol definition.

src/llama_stack/providers/remote/tool_runtime/bing_search/bing_search.py

@@ -52,7 +52,6 @@ class BingSearchToolRuntimeImpl(ToolGroupsProtocolPrivate, ToolRuntime, NeedsReq
         self,
         tool_group_id: str | None = None,
         mcp_endpoint: URL | None = None,
-        authorization: str | None = None,
     ) -> ListToolDefsResponse:
         return ListToolDefsResponse(
             data=[

src/llama_stack/providers/remote/tool_runtime/brave_search/brave_search.py

@@ -51,7 +51,6 @@ class BraveSearchToolRuntimeImpl(ToolGroupsProtocolPrivate, ToolRuntime, NeedsRe
         self,
         tool_group_id: str | None = None,
         mcp_endpoint: URL | None = None,
-        authorization: str | None = None,
     ) -> ListToolDefsResponse:
         return ListToolDefsResponse(
             data=[

src/llama_stack/providers/remote/tool_runtime/tavily_search/tavily_search.py

@@ -51,7 +51,6 @@ class TavilySearchToolRuntimeImpl(ToolGroupsProtocolPrivate, ToolRuntime, NeedsR
         self,
         tool_group_id: str | None = None,
         mcp_endpoint: URL | None = None,
-        authorization: str | None = None,
     ) -> ListToolDefsResponse:
         return ListToolDefsResponse(
             data=[

src/llama_stack/providers/remote/tool_runtime/wolfram_alpha/wolfram_alpha.py

@@ -52,7 +52,6 @@ class WolframAlphaToolRuntimeImpl(ToolGroupsProtocolPrivate, ToolRuntime, NeedsR
         self,
         tool_group_id: str | None = None,
         mcp_endpoint: URL | None = None,
-        authorization: str | None = None,
     ) -> ListToolDefsResponse:
         return ListToolDefsResponse(
             data=[