Deprecate sast:container job name and gl-sast-container-report artifact name

As part of renaming of SAST for Container into Container Scanning we'll take benefit from the breaking changes of 11.0 to:

• remove support for the deprecated sast:container job name
• rename artifact to gl-container-scanning-report.json

Please update:

• auto-devops templates
• SP includes
• documentation

Important note

Due to the lack of deprecation period for the old artifact name before the 11.0 release, both gl-container-scanning-report.json and gl-sast-container-report.json will have to be supported at the same time. To keep things clear and easier for our users we'll just introduce the new names and deprecate the old ones, being ready to remove them in the next major release