Updated test_fstring to 3.13.2 #14043

Job	Run time
Run rust tests (ubuntu-latest)	32s
Run rust tests (windows-latest)	9m 28s
Check Rust code with rustfmt and clippy	2m 5s
Ensure compilation on various targets	11m 35s
Run snippets and cpython tests (macos-latest)	2m 58s
Run snippets and cpython tests (windows-latest)	14m 16s
Run snippets and cpython tests (ubuntu-latest)	3m 21s
Run snippets and cpython tests on wasm-wasi	11m 28s
Check the WASM package and demo	16m 40s
Run tests under miri	2m 19s
Run rust tests (macos-latest)	49s
	1h 15m 31s

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