Bug: Docker does not have access to local files

[baynezy]

Since #233 was implemented, there have been errors like this:

info: SemVer.Json.Features.WriteJsonFile.WriteJsonCommand[0]
      Writing to file: /github/workspace/semver.json
Access to the path '/github/workspace/semver.json' is denied.

SemVer.Json.Features.ReadJsonFile.ReadJsonCommand[0]
      JSON content: {"major":"0","minor":"2","patch":"9","build":"13"}
Access to the path '/github/file_commands/set_output_234e8910-5d30-46e0-82fa-de053e48cddf' is denied.

Need to fix permissions issue.