feat(node-config): add SQL connection pool tuning env vars #678

Job	Run time
rust-library-base / Base Checks / Docs	48s
rust-library-base / Feature Checks	54s
rust-library-base / Base Checks / Rustfmt	35s
rust-library-base / Base Checks / Test Suite	27m 3s
rust-library-base / Base Checks / Clippy	50s
rust-library-base / Base Checks / doctest	1m 34s
rust-library-base / Base Checks / Dylint	5m 28s
rust-library-base / Base Checks / Test Suite	3m 30s
rust-library-base / Base Checks / Dylint	5m 28s
rust-library-base / Feature Checks	54s
rust-library-base / Base Checks / Clippy	50s
rust-library-base / Base Checks / Rustfmt	35s
rust-library-base / Base Checks / Docs	48s
rust-library-base / Base Checks / doctest	1m 34s
	50m 51s

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