Preinstall devtoolset-11

Author: 3manifold

.github/workflows/ci.yml

@@ -160,7 +160,7 @@ jobs:
           CIBW_ENVIRONMENT_PASS_LINUX: CIBW_ARCHS
           CIBW_ENVIRONMENT_WINDOWS: CTRANSLATE2_ROOT='${{ github.workspace }}\install'
           CIBW_ENVIRONMENT_MACOS: "CTRANSLATE2_ROOT='/usr/local' MACOSX_DEPLOYMENT_TARGET=10.13"
-          CIBW_BEFORE_ALL_LINUX: python/tools/prepare_build_environment_linux.sh
+          CIBW_BEFORE_ALL_LINUX: yum install -y devtoolset-11 && scl enable devtoolset-11 bash && python/tools/prepare_build_environment_linux.sh
           CIBW_BEFORE_ALL_MACOS: python/tools/prepare_build_environment_macos.sh
           CIBW_BEFORE_ALL_WINDOWS: bash python/tools/prepare_build_environment_windows.sh
           CIBW_BEFORE_BUILD: pip install -r python/install_requirements.txt