CP-17546 resultset transaction - #17593

Hello!

• Type: bug fix
• Link to issue: [BUG]: Resultset close upper transaction #17546

In raising this pull request, I confirm the following:

• I have read and understood the Contributing Guidelines
• I have checked that another pull request for this purpose does not exist
• I wrote some tests for this PR
• I have updated the relevant CHANGELOG
• I have created a PR for the documentation about this change

• Phalcon\Db\Adapter\Pdo\AbstractPdo::commit() and rollback() now throw Phalcon\Db\Exceptions\NoActiveTransaction when the connection has no active transaction, instead of sending a commit, rollback or savepoint statement to the server.
• Fixed Phalcon\Db\Adapter\Pdo\AbstractPdo leaving the transaction nesting level wrong when begin(), commit() or rollback() fails.

Thanks