Restart Forseti to release used memory

[dwiajik]

Applying the changes in forseti-security repository: https://github.com/forseti-security/forseti-security/pull/3612

This PR releases used up memory by restarting Forseti to prevent potential crash and undesired behavior that is caused by memory not released after a process is completed.

The run_forseti.sh is deleted from forseti-security in this PR https://github.com/forseti-security/forseti-security/pull/3593, mentioning it is migrated to terraform-google-forseti

Related issues:

• https://github.com/forseti-security/forseti-security/issues/3425
• https://github.com/forseti-security/forseti-security/issues/3557
• https://github.com/forseti-security/forseti-security/issues/3576

[google-cla[bot]]

Thanks for your pull request! It looks like this may be your first contribution to a Google open source project. Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA).

View this failed invocation of the CLA check for more information.

For the most up to date status, view the checks section at the bottom of the pull request.

[stale[bot]]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed in 7 days if no further activity occurs. Thank you for your contributions.

[dwiajik]

@gkowalski-google @katze120 Please kindly check my Pull Request, thank you.

[stale[bot]]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed in 7 days if no further activity occurs. Thank you for your contributions.

[stale[bot]]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed in 7 days if no further activity occurs. Thank you for your contributions.