build(deps): bump codecov/codecov-action from 5.2.0 to 5.3.0 #1503

Job	Run time
build with default features	28s
build with MSRV (1.66.1)	2m 26s
test on beta	2m 24s
build with no_std (ristretto255)	30s
actionlint	8s
build with no_std (ed25519)	18s
Clippy	32s
Check Rust doc	25s
build with no_std (p256)	32s
Check if automatically generated code is up to date	24s
Rustfmt	18s
build with no_std (secp256k1)	28s
build with no_std (secp256k1-tr)	28s
build with no_std (rerandomized)	17s
	9m 38s

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