feat(snowflake): implement array map and array filter

[cpcloud]

Adds array map and filter implementations to the Snowflake backend. Thanks again @krzysztof-kwitt for the idea!

The main limitation for the Snowflake versions of these APIs is that your lambda cannot reference any columns outside the scope of the lambda, which means the scope is limited to the lambda parameter and constants.

[gforsyth]

🐚 pytest -m snowflake ibis/backends/tests/test_array.py
================================ test session starts ================================
platform linux -- Python 3.12.2, pytest-8.2.0, pluggy-1.5.0
Using --randomly-seed=974300145
benchmark: 4.0.0 (defaults: timer=time.perf_counter disable_gc=False min_rounds=5 min_time=0.000005 max_time=1.0 calibration_precision=10 warmup=False warmup_iterations=100000)
rootdir: /home/gil/github.com/ibis-project/ibis
configfile: pyproject.toml
plugins: anyio-4.3.0, hypothesis-6.100.4, snapshot-0.9.0, randomly-3.15.0, mock-3.14.0, benchmark-4.0.0, timeout-2.3.1, cov-5.0.0, repeat-0.9.3, clarity-1.0.1, pytest_httpserver-1.0.10, xdist-3.6.1
collected 2760 items / 2622 deselected / 138 selected                               

ibis/backends/tests/test_array.py ........................................... [ 31%]
.............x..............x.x..............x............................... [ 86%]
..........x.......                                                            [100%]

============ 133 passed, 2622 deselected, 5 xfailed in 135.93s (0:02:15) ============