Update container to manylinux_2_28

Author: luismarques

.github/workflows/toolchain_build.yml

@@ -43,8 +43,8 @@ jobs:
 
     name: ${{ matrix.display_name }}
     runs-on: ubuntu-latest
-    # This is a CentOS 7 based image
-    container: quay.io/pypa/manylinux2014_x86_64
+    # This is an AlmaLinux 8 based image
+    container: quay.io/pypa/manylinux_2_28_x86_64
     timeout-minutes: 360
 
     steps:

prepare-centos-7.sh

@@ -7,7 +7,7 @@ set -e
 set -x
 
 # Repository for the `gh` GitHub CLI tool used for creating releases.
-yum-config-manager --add-repo https://cli.github.com/packages/rpm/gh-cli.repo
+dnf config-manager --add-repo https://cli.github.com/packages/rpm/gh-cli.repo
 
 yum install -y \
   sudo \
@@ -25,7 +25,7 @@ yum install -y \
   ncurses-devel \
   ncurses-static \
   pixman-devel \
-  rh-python36 \
+  python36.x86_64 \
   zlib-devel \
   zlib-static \
   libffi-devel