Automate stable-rc reports in the new KernelCI infra

[padovan]

General

• Create an initial stable-rc report email in KCIDB kcidb#532
• Enable full visualization of the data in the grafana dashboard

build reports

• Grouping similar build failures happening on different architectures. ( Take notes from Legacy system as it already had this )
• Extracting data from the dashboard and preparing the report as per the template.

boot reports

• Have a basic mechanism to remove false positives. Apply the learning from regression tracking tool that we worked on last year
• Retry option could be one basic test
• Grouping similar boot failures for preparing the report as per the template.
  • This will be hard to analyze since we do not have a mechanism where we could understand the logs and find similarities between them
  • Missing config failures a lot recently in the new system so there should be a way to detect those kind of failures too.

Nice to have

• Automatically add new stable-rc kernel branches ( not a high priority right now but definitely needed)
• Notify whenever there is a release email from GregKH ( Already implemented here by @crazoes )