fix(#461): release configuration write lock around locator.configure() #1560

Job	Run time
Builds (windows-latest, x86_64-pc-windows-msvc)	5m 21s
Env Tests (ci-poetry-custom, windows-latest, x86_64-pc-windows-msvc)	6m 47s
Tests (macos-14, aarch64-apple-darwin, yes)	12m 26s
Tests (ubuntu-latest, x86_64-unknown-linux-musl, yes)	9m 27s
Builds (ubuntu-latest, x86_64-unknown-linux-musl, yes)	2m 21s
Env Tests (ci-poetry-global, ubuntu-latest, x86_64-unknown-linux-musl)	3m 47s
Env Tests (ci-poetry-project, windows-latest, x86_64-pc-windows-msvc)	8m 28s
Builds (windows-latest, aarch64-pc-windows-msvc)	6m 7s
Env Tests (ci-poetry-custom, ubuntu-latest, x86_64-unknown-linux-musl)	3m 14s
Builds (macos-14, aarch64-apple-darwin, yes)	2m 56s
Env Tests (ci-poetry-global, windows-latest, x86_64-pc-windows-msvc)	7m 10s
Tests in Containers (ci-jupyter-container, ubuntu-latest, mcr.microsoft.com/devcontainers/univers...	4m 44s
Env Tests (ci-poetry-project, ubuntu-latest, x86_64-unknown-linux-musl)	3m 1s
Tests in Containers (ci-homebrew-container, ubuntu-latest, homebrew/brew, x86_64-unknown-linux-musl)	3m 58s
Tests (macos-latest, x86_64-apple-darwin, yes)	15m 1s
Tests (windows-latest, x86_64-pc-windows-msvc, yes)	11m 59s
Builds (macos-latest, x86_64-apple-darwin, yes)	2m 54s
	1h 49m 41s

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