fix: respect isolation level parameter and defaults #2804

Job	Run time
schema-engine-cli on ubuntu-latest	4m 57s
prisma-fmt on ubuntu-latest	1m 53s
query-engine on ubuntu-latest	5m 38s
query-engine-node-api on ubuntu-latest	5m 7s
schema-engine-cli on windows-latest	10m 40s
prisma-fmt on windows-latest	6m 59s
query-engine on windows-latest	14m 35s
query-engine-node-api on windows-latest	12m 43s
schema-engine-cli on macos-13	9m 53s
prisma-fmt on macos-13	3m 32s
query-engine on macos-13	14m 24s
query-engine-node-api on macos-13	13m 51s
React Native / iOS build for commit 5aa58b4fbb6a1312a357ecc107b25a76eb687c88	6m 31s
React Native / Android build for commit 5aa58b4fbb6a1312a357ecc107b25a76eb687c88	5m 52s
	1h 56m 35s

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