WIP set of release notes for 9.8

[sspencerwire]

• removed any versioned application that is listed in the upstream documentation but did not change from 9.7
• listed current package changes by categorry
• kernel and security updates listed
• removed the word "Current" from the meta for 9_7.md

Author checklist (Completed by original Author)

• Good fit for the Rocky Linux project? Title and Author Metatags inserted ?
• If applicable, steps and instructions have been tested to work
• Initial self-review to fix basic typos and grammar completed

Rocky Documentation checklist (Completed by Rocky team)

• 1st Pass (Document is good fit for project and author checklist completed)
• 2nd Pass (Technical Review - check for technical correctness)
• 3rd Pass (Detailed Editorial Review and Peer Review)
• Final approval (Final Review)

[github-actions]

Test results for 012fe6a:

Number of broken URLs: 8

URL,RESULT,FILENAME
 https://www.packer.io/docs/builders/vsphere/vsphere-iso,failed,guides/automation/templates-automation-packer-vsphere.md
 https://accel-ppp.org/,failed,guides/network/accel-ppp_pppoe_server.md
 https://www.intel.com/content/dam/www/public/us/en/documents/product-briefs/ipmi-second-gen-interface-spec-v2-rev1-1.pdf,failed,guides/hardware/ipmi_management.md
 https://andyscott.me,failed,guides/contribute/README.md
 https://www.freedesktop.org/software/systemd/man/latest/systemd.resource-control.html,failed,guides/migrating_cgroup_v1_to_v2.md
 https://dl.rockylinux.org/pub/rocky/9/isos/x86_64/Rocky-9-latest-x86_64-dvd.iso,failed,teams/testing/documentation/dev_guides/openqa_manual_install.md
 https://99tools.net/regex-tester/,failed,books/sed_awk_grep/1_regular_expressions_vs_wildcards.md
 https://www.freedesktop.org/wiki/Software/fontconfig/,failed,books/nvchad/nerd_fonts.md

[sspencerwire]

NOTE: This PR requires the addition of an updated .pages file. It is not included in the PR, because we never know if the minor version of 9 or the minor version of 10 will release first. I may issue two separate PRs for this, with the idea that one will be closed without merging depending on the minor release order of release.