Update macos ci job for macos-26

Author: tsjensen

.github/workflows/boxes.yml

@@ -53,20 +53,20 @@ jobs:
                   parallel: true
 
     build-macos:
-        runs-on: macos-13
+        runs-on: macos-26
         env:
-          BX_LEX: /usr/local/opt/flex/bin/flex
-          BX_YACC: /usr/local/opt/bison/bin/bison
+          BX_LEX: /opt/homebrew/opt/flex/bin/flex
+          BX_YACC: /opt/homebrew/opt/bison/bin/bison
         steps:
             - uses: actions/checkout@v6
 
             # We need to use GNU grep, sed, and xargs on macOS
             - name: add-packages
               run: |
                   brew install flex bison diffutils lcov cmocka grep gnu-sed findutils
-                  echo '/usr/local/opt/grep/libexec/gnubin' >> $GITHUB_PATH
-                  echo '/usr/local/opt/gnu-sed/libexec/gnubin' >> $GITHUB_PATH
-                  echo '/usr/local/opt/findutils/libexec/gnubin' >> $GITHUB_PATH
+                  echo '/opt/homebrew/opt/grep/libexec/gnubin' >> $GITHUB_PATH
+                  echo '/opt/homebrew/opt/gnu-sed/libexec/gnubin' >> $GITHUB_PATH
+                  echo '/opt/homebrew/opt/findutils/libexec/gnubin' >> $GITHUB_PATH
 
             - name: make cov
               run: make cov