fix: tighten Poetry cache path matching #1410

Job	Run time
Tests in Containers (ci-jupyter-container, ubuntu-latest, mcr.microsoft.com/devcontainers/univers...	4m 56s
Tests in Containers (ci-homebrew-container, ubuntu-latest, homebrew/brew, x86_64-unknown-linux-musl)	3m 50s
Tests (ubuntu-latest, x86_64-unknown-linux-musl, yes)	9m 39s
Builds (windows-latest, x86_64-pc-windows-msvc)	4m 49s
Tests (macos-14, aarch64-apple-darwin, yes)	10m 51s
Tests (macos-latest, x86_64-apple-darwin, yes)	13m 2s
Builds (ubuntu-latest, x86_64-unknown-linux-musl, yes)	2m 24s
Builds (windows-latest, aarch64-pc-windows-msvc)	4m 30s
Tests (windows-latest, x86_64-pc-windows-msvc, yes)	9m 21s
Builds (macos-latest, x86_64-apple-darwin, yes)	2m 13s
Builds (macos-14, aarch64-apple-darwin, yes)	2m 18s
Env Tests (ci-poetry-custom, windows-latest, x86_64-pc-windows-msvc)	6m 14s
Env Tests (ci-poetry-project, windows-latest, x86_64-pc-windows-msvc)	6m 20s
Env Tests (ci-poetry-global, windows-latest, x86_64-pc-windows-msvc)	6m 28s
Env Tests (ci-poetry-custom, ubuntu-latest, x86_64-unknown-linux-musl)	2m 50s
Env Tests (ci-poetry-global, ubuntu-latest, x86_64-unknown-linux-musl)	2m 47s
Env Tests (ci-poetry-project, ubuntu-latest, x86_64-unknown-linux-musl)	2m 57s
	1h 35m 29s

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