Add new error for system errors that are retryable

Some issues require a system error to be raised that
indicates we should retry the process. This adds a new
error and bumps the version of the api for future use.

Test: atest keystore2_test
Bug: 238619180
Change-Id: Iff8fa83f7b223e08de9fa31434e16aa3aa2153f6
4 files changed