Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
centos-release
config(sl-release)
config(slreleasever)
redhat-release
sl-release
sl-release(x86-64)
system-release
system-release(releasever)
system-release(releasever)

Requires :

rpmlib(FileDigests) <= 4.6.0-1
rpmlib(CompressedFileNames) <= 3.0.4-1
/usr/libexec/sl-release/set-slrelease.sh
rpmlib(PartialHardlinkSets) <= 4.0.4-1
rpmlib(PayloadIsXz) <= 5.2-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
/usr/libexec/sl-release/anaconda-make-services.sh
config(sl-release) = 7.3-5.sl7

Content of RPM :
/etc/issue
/etc/issue.net
/etc/os-release
/etc/pki/product-default
/etc/pki/rpm-gpg
/etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-beta
/etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-legacy-other
/etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
/etc/pki/rpm-gpg/RPM-GPG-KEY-sl
/etc/pki/rpm-gpg/RPM-GPG-KEY-sl7
/etc/pki/secure-boot
/etc/pki/secure-boot/SECURE-BOOT-KEY-fnal-sl7-exp-2017-07-26
/etc/pki/secure-boot/SECURE-BOOT-KEY-fnal-sl7-exp-2020-08-26
/etc/redhat-release
/etc/rpm/macros.dist
/etc/sl-release
/etc/system-release
/etc/system-release-cpe
/etc/yum.repos.d/sl7-fastbugs.repo
/etc/yum.repos.d/sl7-other.repo
/etc/yum.repos.d/sl7-rolling.repo
/etc/yum.repos.d/sl7-security.repo
/etc/yum.repos.d/sl7-testing.repo
/etc/yum.repos.d/sl7.repo
/etc/yum/vars/slreleasever
/usr/lib/systemd/system-preset/85-display-manager.preset
/usr/lib/systemd/system-preset/90-default.preset
/usr/libexec/sl-release/anaconda-make-service-sl-fastestmirror.sh
/usr/libexec/sl-release/anaconda-make-service-sl-repos.sh
/usr/libexec/sl-release/anaconda-make-service-sl-scap-xml.sh
There is 11 files more in these RPM.