Rust API for pyinitconfig #17789

Job	Run time
fmt	22s
resolve	7s
python${{ matrix.python-version }}-${{ matrix.platform.python-architecture }} ${{ matrix.platform.os }} rust-${{ matrix.rust }}	-1s
clippy/${{ matrix.target }}/${{ matrix.rust }}	-1s
conclusion	4s
python${{ matrix.python-version }}-${{ matrix.platform.python-architecture }} ${{ matrix.platform.os }} rust-${{ matrix.rust }}	-1s
test-version-limits	-1s
check-feature-powerset ${{ matrix.rust }}	-1s
careful	-1s
test-cross-compilation ${{ matrix.os }} -> ${{ matrix.target }}	-1s
valgrind	-1s
test-introspection-pr	-1s
emscripten	-1s
check-nightly/${{ matrix.target }}/${{ matrix.rust }}	-1s
docsrs	-1s
test-introspection	-1s
test-cross-compilation-windows	-1s
pytests-type-checking	-1s
test-debug	-1s
semver-checks	-1s
check-msrv	-1s
wasm32-wasip1	-1s
test-debug-min-version	-1s
	13s

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