pyo3-arrow-v0.7.0

What's Changed

• Add frozen parameter to pyclass macro by @kylebarron in #282
• Avoid returning PyObject and add wrapper types for arro3 export by @kylebarron in #269
• Bump to arrow 54 by @kylebarron in #285

Full Changelog: pyo3-arrow-v0.6.0...pyo3-arrow-v0.7.0