fix(#461): release configuration write lock around locator.configure() #1553

Job	Run time
Tests in Containers (ci-jupyter-container, ubuntu-latest, mcr.microsoft.com/devcontainers/univers...	4m 42s
Builds (ubuntu-latest, x86_64-unknown-linux-musl, yes)	2m 37s
Env Tests (ci-poetry-global, ubuntu-latest, x86_64-unknown-linux-musl)	3m 2s
Builds (windows-latest, aarch64-pc-windows-msvc)	5m 44s
Builds (windows-latest, x86_64-pc-windows-msvc)	5m 13s
Env Tests (ci-poetry-project, ubuntu-latest, x86_64-unknown-linux-musl)	3m 33s
Tests (macos-14, aarch64-apple-darwin, yes)	14m 29s
Env Tests (ci-poetry-global, windows-latest, x86_64-pc-windows-msvc)	7m 7s
Builds (macos-14, aarch64-apple-darwin, yes)	3m 0s
Tests (macos-latest, x86_64-apple-darwin, yes)	14m 26s
Tests in Containers (ci-homebrew-container, ubuntu-latest, homebrew/brew, x86_64-unknown-linux-musl)	50s
Env Tests (ci-poetry-custom, windows-latest, x86_64-pc-windows-msvc)	5m 49s
Tests (windows-latest, x86_64-pc-windows-msvc, yes)	12m 51s
Env Tests (ci-poetry-project, windows-latest, x86_64-pc-windows-msvc)	6m 26s
Env Tests (ci-poetry-custom, ubuntu-latest, x86_64-unknown-linux-musl)	3m 0s
Builds (macos-latest, x86_64-apple-darwin, yes)	3m 15s
Tests (ubuntu-latest, x86_64-unknown-linux-musl, yes)	9m 56s
	1h 46m 0s

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