Fix: Update binary path for pyenv on Windows to use pyenv.bat instead of pyenv.exe #1238

Job	Run time
Tests (ubuntu-latest, x86_64-unknown-linux-musl, yes)	8m 40s
Builds (windows-latest, x86_64-pc-windows-msvc)	4m 27s
Builds (windows-latest, aarch64-pc-windows-msvc)	4m 15s
Env Tests (ci-poetry-project, windows-latest, x86_64-pc-windows-msvc)	10m 13s
Env Tests (ci-poetry-global, ubuntu-latest, x86_64-unknown-linux-musl)	2m 31s
Env Tests (ci-poetry-custom, ubuntu-latest, x86_64-unknown-linux-musl)	2m 28s
Tests in Containers (ci-homebrew-container, ubuntu-latest, homebrew/brew, x86_64-unknown-linux-musl)	3m 49s
Tests (windows-latest, x86_64-pc-windows-msvc, yes)	7m 50s
Tests in Containers (ci-jupyter-container, ubuntu-latest, mcr.microsoft.com/devcontainers/univers...	4m 24s
Tests (macos-14, aarch64-apple-darwin, yes)	13m 28s
Env Tests (ci-poetry-project, ubuntu-latest, x86_64-unknown-linux-musl)	2m 51s
Env Tests (ci-poetry-custom, windows-latest, x86_64-pc-windows-msvc)	5m 8s
Builds (ubuntu-latest, x86_64-unknown-linux-musl, yes)	2m 7s
Builds (macos-latest, x86_64-apple-darwin, yes)	3m 22s
Tests (macos-latest, x86_64-apple-darwin, yes)	22m 9s
Env Tests (ci-poetry-global, windows-latest, x86_64-pc-windows-msvc)	7m 26s
Builds (macos-14, aarch64-apple-darwin, yes)	4m 6s
	1h 49m 14s

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