examples: Upgrade bb8-postgres deps (#3072) #5105

Job	Run time
check-docs	24s
cargo-public-api-crates (axum)	38s
check	1m 7s
cargo-hack	3m 45s
cargo-public-api-crates (axum-core)	27s
cargo-deny check (advisories)	25s
cargo-public-api-crates (axum-extra)	44s
cargo-deny check (bans licenses sources)	23s
cargo-public-api-crates (axum-macros)	21s
dependencies-are-sorted	26s
Spell Check with Typos	6s
test-msrv	2m 4s
test-nightly	1m 41s
test-versions (stable)	2m 33s
test-docs	1m 52s
test-versions (beta)	1m 50s
armv5te-unknown-linux-musleabi	38s
wasm32-unknown-unknown	44s
	20m 8s

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