Add detection for in-project Poetry environments and support for poet… #1197

Job	Run time
Env Tests (ci-poetry-global, windows-latest, x86_64-pc-windows-msvc)	5m 10s
Builds (ubuntu-latest, x86_64-unknown-linux-musl, yes)	1m 58s
Tests in Containers (ci-jupyter-container, ubuntu-latest, mcr.microsoft.com/devcontainers/univers...	4m 16s
Tests (windows-latest, x86_64-pc-windows-msvc, yes)	7m 43s
Env Tests (ci-poetry-custom, ubuntu-latest, x86_64-unknown-linux-musl)	2m 40s
Tests in Containers (ci-homebrew-container, ubuntu-latest, homebrew/brew, x86_64-unknown-linux-musl)	3m 31s
Env Tests (ci-poetry-global, ubuntu-latest, x86_64-unknown-linux-musl)	2m 37s
Tests (macos-14, aarch64-apple-darwin, yes)	12m 29s
Env Tests (ci-poetry-project, ubuntu-latest, x86_64-unknown-linux-musl)	2m 30s
Tests (ubuntu-latest, x86_64-unknown-linux-musl, yes)	8m 30s
Env Tests (ci-poetry-project, windows-latest, x86_64-pc-windows-msvc)	5m 0s
Builds (windows-latest, aarch64-pc-windows-msvc)	4m 11s
Env Tests (ci-poetry-custom, windows-latest, x86_64-pc-windows-msvc)	7m 54s
Builds (macos-14, aarch64-apple-darwin, yes)	2m 41s
Builds (windows-latest, x86_64-pc-windows-msvc)	5m 1s
Tests (macos-latest, x86_64-apple-darwin, yes)	13m 11s
Builds (macos-latest, x86_64-apple-darwin, yes)	2m 26s
	1h 31m 48s

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