build: Bump nixpkgs #670

Job	Run time
Test Sentinel-1 using Nix	31s
Lint content	32s
Test Sentinel-2 using Nix	32s
Test machine readable to human-readable date/time using Nix	44s
Test Sentinel-1 on macos-12, using Poetry with Python 3.8	3m 8s
Test Sentinel-2 on macos-12, using Poetry with Python 3.8	7m 37s
Test Sentinel-1 on macos-12, using Poetry with Python 3.11	5m 53s
Test Sentinel-2 on macos-12, using Poetry with Python 3.11	13m 49s
Test Sentinel-1 on ubuntu-22.04, using Poetry with Python 3.8	1m 54s
Test Sentinel-2 on ubuntu-22.04, using Poetry with Python 3.8	2m 39s
Test Sentinel-1 on ubuntu-22.04, using Poetry with Python 3.11	2m 2s
Test Sentinel-2 on ubuntu-22.04, using Poetry with Python 3.11	7m 26s
Test Sentinel-1 on windows-2022, using Poetry with Python 3.8	6m 43s
Test Sentinel-2 on windows-2022, using Poetry with Python 3.8	6m 32s
Test Sentinel-1 on windows-2022, using Poetry with Python 3.11	7m 28s
Test Sentinel-2 on windows-2022, using Poetry with Python 3.11	11m 15s
finalise	2s
	1h 18m 47s

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