tests: extract database access credentials into dot-env files

[staabm]

instead of duplicating the db access information across all bootstrap.php files in the testsuites we should have 2 dot-env files - one for the local env and one for the github actions.

that way other devs can run the testsuite locally with different db access credentials more easily

[xPaw]

There's also another unrelated issue with tests as I'm on Windows, and mariadb forces lowercase table names due to case insensitive file system.

Thus one of the tests fails:

-41: Query error: Table 'phpstan_dba.unknownTable' doesn't exist (1146).
+41: Query error: Table 'phpstan_dba.unknowntable' doesn't exist (1146).

[staabm]

There's also another unrelated issue with tests as I'm on Windows, and mariadb forces lowercase table names due to case insensitive file system.

lets discuss this in #273

[staabm]

also note: we the refactoring from yesterday the db access credentials have been concentrated into https://github.com/staabm/phpstan-dba/blob/main/tests/ReflectorFactory.php

[xPaw]

There's still credentials in bootstrap.php fyi

[staabm]

There's still credentials in bootstrap.php fyi

good point, we should fix that