HTTPError: Not Found

[adrian-kong]

This action runs fine on other cases, only amending comments seems to give a HTTP Error as follows:

Found 4 Coverity issues.
HttpError: Not Found
    at /home/runner/work/_actions/synopsys-sig/coverity-report-output-v7-json/v0.1.0/webpack:/coverity-report-output-v7-json/node_modules/@octokit/request/dist-node/index.js:86:1
    at processTicksAndRejections (node:internal/process/task_queues:96:5)

[adrian-kong]

Looks like it's because issue branch uses review comment update.
I've attached a PR to resolve this.