fix: update toolbox-adk and toolbox server versions

This PR updates the `toolbox-adk` package version in the `pyproject.toml` and also updates the MCP Toolbox server version to the latest in the docs.

PiperOrigin-RevId: 890633573

Author: google-genai-bot

contributing/samples/toolbox_agent/README.md

@@ -19,7 +19,7 @@ Run the following command to download and install the MCP Toolbox binary.
 
 ```bash
 export OS="linux/amd64" # one of linux/amd64, darwin/arm64, darwin/amd64, or windows/amd64
-curl -O https://storage.googleapis.com/genai-toolbox/v0.28.0/$OS/toolbox
+curl -O https://storage.googleapis.com/genai-toolbox/v0.31.0/$OS/toolbox
 chmod +x toolbox
 ```
 

pyproject.toml

@@ -165,12 +165,12 @@ extensions = [
   "llama-index-embeddings-google-genai>=0.3.0", # For files retrieval using LlamaIndex.
   "lxml>=5.3.0",                                # For load_web_page tool.
   "pypika>=0.50.0",                             # For crewai->chromadb dependency
-  "toolbox-adk>=0.7.0, <0.8.0",                 # For tools.toolbox_toolset.ToolboxToolset
+  "toolbox-adk>=1.0.0, <2.0.0",                 # For tools.toolbox_toolset.ToolboxToolset
 ]
 
 otel-gcp = ["opentelemetry-instrumentation-google-genai>=0.6b0, <1.0.0"]
 
-toolbox = ["toolbox-adk>=0.7.0, <0.8.0"]
+toolbox = ["toolbox-adk>=1.0.0, <2.0.0"]
 
 slack = ["slack-bolt>=1.22.0"]