Fixing 'package' CI workflow after CentOS 7 reached end of life. (#931)

* Fixing 'package' CI workflow after CentOS 7 reached end of life.

Signed-off-by: Andres Santana <hernaa@amazon.com>

* Separate the installation of epel-release and centos-release-scl.

I suspect this is why some packages like fakeroot are not found.

Signed-off-by: Andres Santana <hernaa@amazon.com>

* Using http instead of https for the repo URIs.

Signed-off-by: Andres Santana <hernaa@amazon.com>

* Trying removing repo centos-release-scl.

Want to try this to see if it helps for ARM build.

Signed-off-by: Andres Santana <hernaa@amazon.com>

* Adding centos-release-scl back.

Signed-off-by: Andres Santana <hernaa@amazon.com>

* Trying CentOS 8.

Signed-off-by: Andres Santana <hernaa@amazon.com>

* Changing to dnf and using group install for dev tools.

Signed-off-by: Andres Santana <hernaa@amazon.com>

* Adding James' suggestion.

Signed-off-by: Andres Santana <hernaa@amazon.com>

---------

Signed-off-by: Andres Santana <hernaa@amazon.com>

package/Dockerfile

@@ -1,6 +1,18 @@
 FROM public.ecr.aws/docker/library/centos:7
 
+# Need this because of Centos 7 reached EOL on July 1, 2024 and mirrorlist.centos.org does not exist anymore.
+RUN sed -i s/mirror.centos.org/vault.centos.org/g /etc/yum.repos.d/*.repo
+RUN sed -i s/^#.*baseurl=http/baseurl=https/g /etc/yum.repos.d/*.repo
+RUN sed -i s/^mirrorlist=http/#mirrorlist=https/g /etc/yum.repos.d/*.repo
+
 RUN yum install -y epel-release centos-release-scl
+
+# Fix up the newly added SCL repos, which don't have altarch baseurls
+RUN sed -i s/mirror.centos.org/vault.centos.org/g /etc/yum.repos.d/*.repo
+RUN sed -i s/^#.*baseurl=http/baseurl=https/g /etc/yum.repos.d/*.repo
+RUN sed -i s/^mirrorlist=http/#mirrorlist=https/g /etc/yum.repos.d/*.repo
+RUN if [ `uname -p` == "aarch64" ]; then sed -i s+centos/7+altarch/7+g /etc/yum.repos.d/*.repo; fi
+
 RUN yum install -y \
         fuse \
         fuse-devel \