[forge] update memory thresholds for Forge stable #71491

Job	Run time
file_change_determinator	11s
rust-doc-tests	5m 9s
rust-consensus-only-unit-test	0s
rust-unit-tests	0s
rust-consensus-only-smoke-test	0s
rust-cargo-deny	1m 38s
rust-lints	3m 37s
general-lints	27s
rust-smoke-tests	28m 14s
rust-build-cached-packages	2m 5s
rust-check-merge-base	1m 14s
rust-targeted-unit-tests	5m 4s
rust-cryptohasher-domain-separation-check	0s
	47m 39s

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