feat: Provide and then parse invocation params from Span into Playground page store (#5256)

* chore: Add uv.lock to gitignore

* feat: Bump openinference-semantic-conventions package version

* feat: Add invocation_parameters field to Span class / gql query

* feat: Parse incoming span attributes into playground store and use them as default values

* Update test fixture

* Test invocation parameter parsing from span

* Revert formatting of pyproject.toml

* Address review comments