tests: Do not allow tests to be run in a shared environment.
* tests/openpgp/README: Update. * tests/openpgp/run-tests.scm (run-tests-parallel-shared): Drop function. (run-tests-parallel-isolated): Rename to 'run-tests-parallel'. (run-tests-sequential-shared): Drop function. (run-tests-sequential-isolated): Rename to 'run-tests-sequential'.
- Signed-off-by: Justus Winter <justus@g10code.com>