Feature/patched singer python framework

[s7clarke10]

tap-mssql 2.4.0 2024-08-08

• Moving to patched version of Singer Framework plus using msgspec rather than orjson for JSON serialization speed.
• Adjusting tox file for test pipeline to point to correct location of the sqlcmd in the latest MSSQL docker image.
• Adjusting tox file. Added -No switch calling sqlcmd to allow user/password connection to MSSQL.
• Patching dependencies.
• Pinned Requests to "2.31.0". This is required as the tox pipeline fails with a Docker API error with requests "2.32.x".
• Explicitly setting python version 3.8 -> 3.12
• Moving to using recommended poetry-core for build. https://python-poetry.org/docs/pyproject/#poetry-and-pep-517
• NOTE: Recommend refactoring to avoid using tox-poetry-installer as restrictive dependencies are stopping tox and docker updates. This may resolve the requests/docker api issue.