test: do not rely on the datasource url in tests

[jacek-prisma]

TML-1464

Makes the vast majority of our tests no longer rely on the datasource url attribute and replaces the URLs with a dummy dummy-url.

Some exceptions:

• schema-engine/cli/tests/cli_tests.rs
  • 8 tests in this file manually spawn the schema engine binary, currently there is no way to pass the URL to it
    • execute_postgres
    • introspect_single_postgres_force
    • introspect_multi_postgres_force
    • get_database_version_multi_file
    • introspect_sqlite_empty_database
    • introspect_sqlite_invalid_empty_database
    • basic_jsonrpc_roundtrip_works_with_no_params
    • basic_jsonrpc_roundtrip_works_with_params
• schema-engine/sql-migration-tests/tests/migrations/postgres.rs
  • one test programatically instantiates the schema engine, currently there is no way to pass the URL to it
    • connecting_to_a_postgres_database_with_the_cockroach_connector_fails
• query-engine/black-box-tests
  • 4 tests in this directory manually spawn the query engine binary, currently there is no way to pass the URL to it
  • current workaround:

    prisma-engines/query-engine/connector-test-kit-rs/query-tests-setup/src/datamodel_rendering/mod.rs

    Line 53 in 41b47c4

    // only needed for blackbox tests, the real URL is not used anywhere else

In the case of all these tests, they still rely on the URL attribute, they could be modified to pass the URL through RPC pretty easily though since they directly use RPC commands (which would require us to actually implement something like that in the RPC and I think we will need something like that in Prisma 7, it's currently not possible).

The main changes are split into two commits, the first adjusts the test code and the second replaces all TEST_DATABASE_URL with a dummy value (to verify they're not used).

[codspeed-hq]

CodSpeed Performance Report

Merging #5643 will not alter performance

_{Comparing test/do-not-rely-on-url-attributes (f2f70ee) with main (9a5a35d)}

Summary

✅ 11 untouched

[github-actions]

WASM Query Engine File Size

Engine	This PR	Base branch	Diff
Postgres	2.191MiB	2.191MiB	0.000B
Postgres (gzip)	867.878KiB	867.881KiB	-3.000B
Mysql	2.159MiB	2.159MiB	0.000B
Mysql (gzip)	854.660KiB	854.664KiB	-4.000B
Sqlite	2.071MiB	2.071MiB	0.000B
Sqlite (gzip)	820.100KiB	820.102KiB	-2.000B
SQL Server	2.130MiB	2.130MiB	0.000B
SQL Server (gzip)	845.639KiB	845.641KiB	-2.000B
CockroachDB	2.213MiB	2.213MiB	0.000B
CockroachDB (gzip)	876.962KiB	876.964KiB	-2.000B

WASM Query Compiler File Size

Engine	This PR	Base branch	Diff
Postgres	1.859MiB	1.859MiB	0.000B
Postgres (gzip)	733.869KiB	733.869KiB	0.000B
Mysql	1.825MiB	1.825MiB	0.000B
Mysql (gzip)	722.148KiB	722.148KiB	0.000B
Sqlite	1.783MiB	1.783MiB	0.000B
Sqlite (gzip)	704.437KiB	704.437KiB	0.000B
SQL Server	1.856MiB	1.856MiB	0.000B
SQL Server (gzip)	735.097KiB	735.097KiB	0.000B
CockroachDB	1.884MiB	1.884MiB	0.000B
CockroachDB (gzip)	743.478KiB	743.478KiB	0.000B