pes_events_scanner: fix processing of RpmTransactionTasks #4241

Job	Run time
Run unit tests in containers (Run unit tests for el9toel10 and common repositories on python 3.12...	47s
Run unit tests in containers (Run python linters for el9toel10 and common repositories on python ...	1m 15s
Run unit tests in containers (Run unit tests for el9toel10 and common repositories on python 3.9,...	48s
Run unit tests in containers (Run python linters for el9toel10 and common repositories on python ...	1m 13s
Run unit tests in containers (Run unit tests for el8toel9 and common repositories on python 3.9, ...	50s
Run unit tests in containers (Run python linters for el8toel9 and common repositories on python 3...	1m 26s
Run unit tests in containers (Run unit tests for el8toel9 and common repositories on python 3.6, ...	1m 9s
Run unit tests in containers (Run python linters for el8toel9 and common repositories on python 3...	3m 33s
Run unit tests in containers (Run unit tests for el7toel8 and common repositories on python 3.6, ...	1m 17s
Run unit tests in containers (Run python linters for el7toel8 and common repositories on python 3...	4m 27s
Run unit tests in containers (Run unit tests for el7toel8 and common repositories on python 2.7, ...	1m 18s
Run unit tests in containers (Run python linters for el7toel8 and common repositories on python 2...	6m 55s
	24m 58s

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