Bump pyo3 from 0.20.2 to 0.20.3 #508

Job	Run time
check-lockfile	5s
check-lockfile	5s
lint-crlf	5s
lint-crlf	5s
changes	2s
changes	2s
lint-newsfile	0s
lint-newsfile	0s
lint	0s
lint	0s
check-sampleconfig	0s
check-sampleconfig	0s
check-schema-delta	0s
check-schema-delta	0s
lint-clippy	3m 45s
lint-clippy	3m 45s
lint-clippy-nightly	1m 0s
lint-clippy-nightly	1m 0s
Typechecking	0s
Typechecking	0s
lint-pydantic	0s
lint-pydantic	0s
lint-rustfmt	45s
lint-rustfmt	45s
linting-done	2s
linting-done	2s
calculate-test-jobs	7s
calculate-test-jobs	7s
complement (monolith, SQLite)	12m 3s
complement (monolith, SQLite)	12m 3s
portdb (3.8, 11)	2m 57s
portdb (3.8, 11)	2m 57s
complement (monolith, Postgres)	12m 46s
complement (monolith, Postgres)	12m 46s
portdb (3.11, 15)	2m 45s
portdb (3.11, 15)	2m 45s
complement (workers, Postgres)	20m 12s
complement (workers, Postgres)	20m 12s
trial-olddeps	7m 38s
trial-olddeps	7m 38s
cargo-bench	0s
cargo-bench	0s
cargo-test	0s
cargo-test	0s
trial-pypy	0s
trial-pypy	0s
trial (3.8, sqlite, all)	4m 37s
trial (3.8, sqlite, all)	4m 37s
trial (3.8, postgres, 11, all)	10m 22s
trial (3.8, postgres, 11, all)	10m 22s
sytest (focal)	9m 21s
sytest (focal)	9m 21s
trial (3.8, sqlite)	4m 25s
trial (3.8, sqlite)	4m 25s
sytest (focal, postgres)	10m 31s
sytest (focal, postgres)	10m 31s
sytest (focal, multi-postgres, workers)	13m 47s
sytest (focal, multi-postgres, workers)	13m 47s
sytest (focal, multi-postgres, workers, asyncio)	26m 27s
sytest (focal, multi-postgres, workers, asyncio)	19m 52s
export-data	2m 5s
export-data	2m 5s
tests-done	2s
tests-done	1s
	4h 45m 2s

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