refactor extract brew

Use composite action to reduce copy & paste.

.github/actions/setup/macos/action.yml

@@ -0,0 +1,17 @@
+name: Setup macOS environment
+description: >-
+  Installs necessary packages via Homebrew.
+
+inputs: {} # nothing?
+
+outputs: {} # nothing?
+
+runs:
+  using: composite
+
+  steps:
+    - name: brew
+      shell: bash
+      run: |
+        brew upgrade
+        brew install gmp libffi openssl@1.1 zlib autoconf automake libtool readline

.github/workflows/check_dependencies.yml

@@ -38,11 +38,6 @@ jobs:
     runs-on: ${{ matrix.os }}
     if: ${{ !contains(github.event.head_commit.message, '[DOC]') && !contains(github.event.pull_request.labels.*.name, 'Documentation') }}
     steps:
-      - name: Install libraries
-        run: |
-          brew upgrade
-          brew install gmp libffi openssl@1.1 zlib autoconf automake libtool readline
-        if: ${{ contains(matrix.os, 'macos') }}
       - name: git config
         run: |
           git config --global advice.detachedHead 0
@@ -50,6 +45,8 @@ jobs:
       - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
       - uses: ./.github/actions/setup/ubuntu
         if: ${{ contains(matrix.os, 'ubuntu') }}
+      - uses: ./.github/actions/setup/macos
+        if: ${{ contains(matrix.os, 'macos') }}
       - uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
         with:
           path: .downloaded-cache

.github/workflows/macos.yml

@@ -57,10 +57,7 @@ jobs:
           path: src/.downloaded-cache
           key: downloaded-cache
       - name: Install libraries
-        run: |
-          brew upgrade
-          brew install gmp libffi openssl@1.1 zlib autoconf automake libtool readline
-        working-directory: src
+        uses: ./src/.github/actions/setup/macos
       - name: Set ENV
         run: |
           echo "MAKEFLAGS=-j$((1 + $(sysctl -n hw.activecpu)))" >> $GITHUB_ENV