Apple silicon agent build fix (#6599)

Author: dmose

libs/agent-tools/pyproject.toml

@@ -16,7 +16,7 @@ bugzilla = [
 ]
 firefox = ["grizzly-framework", "prefpicker"]
 claude-sdk = ["claude-agent-sdk>=0.1.30"]
-searchfox = ["searchfox>=0.16.0"]
+searchfox = ["searchfox>=0.20.3"]
 vcs = ["httpx"]
 
 [build-system]

pyproject.toml

@@ -51,7 +51,7 @@ dependencies = [
     "requests>=2.33,<2.35",
     "requests-html~=0.10.0",
     "rs-parsepatch~=0.4.6",
-    "searchfox>=0.16.0",
+    "searchfox>=0.20.3",
     "scikit-learn~=1.7.2",
     "scipy>=1.17.1,<1.19.0",
     "sendgrid~=6.12.5",