fix: Add fallback to home directory for pyenv version detection on Windows and implement corresponding tests #1239

Job	Run time
Tests (macos-14, aarch64-apple-darwin, yes)	11m 27s
Builds (windows-latest, x86_64-pc-windows-msvc)	4m 53s
Tests (macos-latest, x86_64-apple-darwin, yes)	14m 40s
Env Tests (ci-poetry-global, windows-latest, x86_64-pc-windows-msvc)	5m 25s
Tests in Containers (ci-jupyter-container, ubuntu-latest, mcr.microsoft.com/devcontainers/univers...	4m 19s
Tests (windows-latest, x86_64-pc-windows-msvc, yes)	7m 11s
Builds (ubuntu-latest, x86_64-unknown-linux-musl, yes)	2m 0s
Builds (macos-14, aarch64-apple-darwin, yes)	1m 55s
Tests in Containers (ci-homebrew-container, ubuntu-latest, homebrew/brew, x86_64-unknown-linux-musl)	3m 35s
Builds (windows-latest, aarch64-pc-windows-msvc)	5m 16s
Tests (ubuntu-latest, x86_64-unknown-linux-musl, yes)	8m 52s
Env Tests (ci-poetry-global, ubuntu-latest, x86_64-unknown-linux-musl)	2m 54s
Env Tests (ci-poetry-project, windows-latest, x86_64-pc-windows-msvc)	6m 57s
Env Tests (ci-poetry-custom, windows-latest, x86_64-pc-windows-msvc)	5m 25s
Env Tests (ci-poetry-project, ubuntu-latest, x86_64-unknown-linux-musl)	2m 25s
Builds (macos-latest, x86_64-apple-darwin, yes)	3m 9s
Env Tests (ci-poetry-custom, ubuntu-latest, x86_64-unknown-linux-musl)	2m 34s
	1h 32m 57s

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