try install g++

Author: Tieqiong

.github/workflows/wheels.yml

@@ -41,7 +41,7 @@ jobs:
           CIBW_BUILD: ${{ matrix.python }}-${{ matrix.buildplat[1] }}
           CIBW_BEFORE_BUILD: |
             yum install -y epel-release
-            yum install -y gsl gsl-devel
+            yum install -y gsl gsl-devel g++
             gsl-config --version
             echo $PATH