ci: Add aarch64 macOS to CI matrix

* Add 'macos-latest' runners which are macos-14 aarch64 machines.
* Add libtool to brew install list.

.github/workflows/ci.yml

@@ -34,7 +34,7 @@ jobs:
       fail-fast: false
       matrix:
         python-version: ["3.8", "3.12"]
-        runs-on: [ubuntu-latest, macos-13]
+        runs-on: [ubuntu-latest, macos-13, macos-latest]
         arch: [auto64]
     steps:
       - uses: actions/checkout@v4
@@ -48,16 +48,14 @@ jobs:
       - name: Install compiler tools on macOS
         if: runner.os == 'macOS'
         run: |
-          brew install make automake swig gmp mpfr boost
-          export PATH="/usr/local/opt/make/libexec/gnubin:$PATH"
+          brew install make automake swig gmp mpfr boost libtool
 
       - name: Install extra deps on Linux
         if: runner.os == 'Linux'
         run: sudo apt-get update && sudo apt-get install -y libboost-dev libmpfr-dev swig autoconf libtool
 
       - name: Install package
         run: |
-          echo $PATH
           python -m pip install '.[test]' -v
 
       - name: Test package
@@ -69,7 +67,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-13]
+        os: [ubuntu-latest, macos-13, macos-latest]
         python: [312]
         arch: [auto64]
 
@@ -86,8 +84,7 @@ jobs:
       - name: Install compiler tools on macOS
         if: runner.os == 'macOS'
         run: |
-          brew install make automake swig mpfr boost
-          export PATH="/usr/local/opt/make/libexec/gnubin:$PATH"
+          brew install make automake swig mpfr boost libtool
 
       - name: Clone gmp
         if: runner.os == 'macOS'