Merge pull request #20673 from Homebrew/add-unreachable-cask-reason

deprecate_disable: add `unreachable` reason

Library/Homebrew/deprecate_disable.rb

@@ -28,6 +28,7 @@ module DeprecateDisable
     no_longer_meets_criteria: "no longer meets the criteria for acceptable casks",
     unmaintained:             "is not maintained upstream",
     fails_gatekeeper_check:   "does not pass the macOS Gatekeeper check",
+    unreachable:              "is no longer reliably reachable upstream",
     # odeprecate: remove the unsigned reason in a future release
     unsigned:                 "is unsigned or does not meet signature requirements",
   }.freeze, T::Hash[Symbol, String])

Library/Homebrew/github_runner_matrix.rb

@@ -10,7 +10,7 @@ class GitHubRunnerMatrix
   # `git tag 15-sequoia f42c4a659e4da887fc714f8f41cc26794a4bb320`
   # to allow people to jump to specific commits based on their macOS version.
   NEWEST_HOMEBREW_CORE_MACOS_RUNNER = :sequoia
-  OLDEST_HOMEBREW_CORE_MACOS_RUNNER = :ventura
+  OLDEST_HOMEBREW_CORE_MACOS_RUNNER = :sonoma
   NEWEST_HOMEBREW_CORE_INTEL_MACOS_RUNNER = :sonoma
 
   RunnerSpec = T.type_alias { T.any(LinuxRunnerSpec, MacOSRunnerSpec) }