selftest/cases/runtime_test: ignore removal errors when cleaning temporary gpg directory
The high-level method tempfile.TemporaryDirectory give us no way to ignore erros on
removal thus use tempfile.mkdtemp instead. Ignoring possible issues on removal
is neccesary because it contains gpg sockets that are automatically removed by
the system once the process terminates, otherwise the following log is observed:
File "/usr/lib/python3.5/shutil.py", line 436, in _rmtree_safe_fd
os.unlink(name, dir_fd=topfd)
FileNotFoundError: [Errno 2] No such file or directory: 'S.gpg-agent.browser'
This is the same fix as
7e3a7cd2426feac757def81850dc44156cd0f33e, but this applies
to runtime (instead of signing).
[YOCTO #11821]
Signed-off-by: Leonardo Sandoval <leonardo.sandoval.gonzalez@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
