feat: updates pydantic and schema version

[jtyoung84]

Closes #65

• Updates version of aind-data-schema and pydantic
• Enforces users to input PosixPath strings when creating job requests
  • Since this service is expected to run on the HPC, it makes it easier to do this versus writing path translations
  • This also makes it so that the unit tests can run on Windows and Linux environments without issues, which should close out Support developer consistency across OS/ Windows #63

[helen-m-lin]

Confirmed that unit tests all pass when run locally on a Windows machine. So, this PR should also close #63 as expected.

[mekhlakapoor]

I tested this out locally with Di's upload jobs example and I get an error response with no info about what went wrong. I get a more informative error when I use the template. I can send over the example csv on teams.