feat(psl): GA `fullTextSearch` for `mysql`, introduce `nativeFullTextSearchPostgres` for `postgres` #2788

Job	Run time
schema-engine-cli on ubuntu-latest	20s
prisma-fmt on ubuntu-latest	6s
query-engine on ubuntu-latest	5s
query-engine-node-api on ubuntu-latest	19s
schema-engine-cli on windows-latest	1s
prisma-fmt on windows-latest	2s
query-engine on windows-latest	1s
query-engine-node-api on windows-latest	2s
schema-engine-cli on macos-13	3s
prisma-fmt on macos-13	6s
query-engine on macos-13	6s
query-engine-node-api on macos-13	5s
React Native / Android build for commit 4a7ed308519ebfd398a494b71f2be5018c631977	4s
React Native / iOS build for commit 4a7ed308519ebfd398a494b71f2be5018c631977	6s
	1m 26s

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