Temporary static inventory files are not deleted

[pavlozt]

When using a docker compose with static inventory, the temporary file is not deleted. Therefore, a large number of temporary files are created during operation.

I do not observe such code in defer. Only keys are removed https://github.com/ansible-semaphore/semaphore/blob/dd41d48c9b65782a8509082624b6106fef36cca4/services/tasks/runner.go#L257

Also, I don't fully understand the mechanism of the variable SEMAPHORE_TMP_PATH. Perhaps inventories should be created in this directory, but are not actually created there.

[pavlozt]

it is not so important whether I correctly understood the features of the program settings, but in any case, temporary files should be deleted. So I suggest merging my changes #1134
Dear developers, please let me know what you think.