WIP: Update the default value of the parameters in the vulnerability monitoring CB job. (#7173)
WIP: Update the default value of the parameters in the vulnerability monitoring CB job. (#7173)

* feat: add a Cloud Build job to monitor the vulnerabilities that are found in the LTS images.

Reference: go/cd-lts-image-security.

* Format the shell script and add substitutions to cloudbuild.yaml.

* Update the body of the existing issue.

Update author.

* Use key ~ value operator for --filter flag.

* [WIP: only report the vulnerability of the LTS images with last patched version]

* Add the reference to the issue for the automatic notification effort.

* Update the default value of the parameters in the CB job.
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