feat(docker-build): add security report option and upload step

[TartanLeGrand]

This pull request updates the .github/workflows/docker-build.yml file to enhance security reporting capabilities by introducing a new input parameter and associated actions. The most important changes include adding support for a security-report input, modifying conditions for existing steps, and introducing a new step to upload SARIF files to GitHub's Security tab.

Enhancements to security reporting:

• Added a new security-report input parameter with a default value of 'sarif' and type string. This allows users to specify the desired format for security scan results. ([.github/workflows/docker-build.ymlR22-R25](https://github.com/iExecBlockchainComputing/github-actions-workflows/pull/37/files#diff-3414847e2ad632333f775cabb810f0dc0df61a570365df34750a08b00912fe82R22-R25))
• Updated the condition for the "Update Pull Request with Security Scan Results" step to check for security-report == 'comment' in addition to the existing conditions. ([.github/workflows/docker-build.ymlL103-R107](https://github.com/iExecBlockchainComputing/github-actions-workflows/pull/37/files#diff-3414847e2ad632333f775cabb810f0dc0df61a570365df34750a08b00912fe82L103-R107))
• Introduced a new step to upload Trivy scan results in SARIF format to GitHub's Security tab when security-report == 'sarif'. This step uses the github/codeql-action/upload-sarif@v3 action. ([.github/workflows/docker-build.ymlR130-R135](https://github.com/iExecBlockchainComputing/github-actions-workflows/pull/37/files#diff-3414847e2ad632333f775cabb810f0dc0df61a570365df34750a08b00912fe82R130-R135))