Remove the no longer needed error suppressions

Deprecate ServerInfoAwareConnection#requiresQueryForServerVersion() as an implementation detail

Deprecate PingableConnection in favor of handling lost connection

Update Slevomat Coding Standard to 6.3.10

Deprecate ExceptionConverterDriver

Fixes for the recently introduced driver-level deprecations

Update PHPStan to 0.12.31

Deprecate DriverException::getErrorCode()

Mark non-interface OCI8 driver methods internal

UPGRADE: Fix misplaced backtick

Deprecate inconsistently and ambiguously named driver-level classes

Update PHPStan to 0.12.30

The test forward-incompatible statement must be a wrapper statement, not just implement the driver-level interface

Bump Psalm level to 5