perf: introduce stack cache #907

Job	Run time
Build Austin on Linux	19s
Build Austin on Linux (musl)	13s
Build Austin on macOS (gcc)	14s
Build Austin on macOS (clang)	33s
Build Austin on Windows	35s
Build Linux wheels	0s
Tests on Linux with Python ${{ matrix.python-version }}	0s
Data validation with Python ${{ matrix.python-version }}	0s
Build Windows wheels	45s
Tests on Windows with Python 3.8	3m 53s
Tests on Windows with Python 3.9	3m 58s
Tests on Windows with Python 3.10	3m 52s
Tests on Windows with Python 3.11	3m 47s
Tests on Windows with Python 3.12	3m 52s
Build macOS wheels	43s
Tests on macOS with Python 3.8	3m 10s
Tests on macOS with Python 3.9	2m 17s
Tests on macOS with Python 3.10	2m 15s
Tests on macOS with Python 3.11	1m 56s
Tests on macOS with Python 3.12	2m 3s
	34m 25s

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