zsh -> bash

Author: zeriyoshi

.github/actions/brew/action.yml

@@ -2,7 +2,7 @@ name: brew
 runs:
   using: composite
   steps:
-    - shell: zsh
+    - shell: bash
       run: |
         set -x
         brew install \

.github/actions/configure-macos/action.yml

@@ -6,7 +6,7 @@ inputs:
 runs:
   using: composite
   steps:
-    - shell: zsh
+    - shell: bash
       run: |
         set -x
         export PATH="/usr/local/opt/bison/bin:$PATH"

.github/actions/test-macos/action.yml

@@ -6,7 +6,7 @@ inputs:
 runs:
   using: composite
   steps:
-    - shell: zsh
+    - shell: bash
       run: |
         set -x
         export SKIP_IO_CAPTURE_TESTS=1