Fix linuxbrew workflow

Author: TomiBelan

.github/workflows/linuxbrew.yml

@@ -6,6 +6,9 @@ jobs:
     strategy:
       matrix:
         python: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+    env:
+      # For some unknown reason, linuxbrew tries to use "gcc-11" by default, which doesn't exist.
+      CC: gcc
     steps:
       - uses: actions/checkout@v3
       - name: Install brew