Enable IPU for EL 9.6 (and drop EL 8.8/9.2) #4202

Job	Run time
Run unit tests in containers (Run unit tests for el9toel10 and common repositories on python 3.12...	51s
Run unit tests in containers (Run python linters for el9toel10 and common repositories on python ...	1m 20s
Run unit tests in containers (Run unit tests for el9toel10 and common repositories on python 3.9,...	52s
Run unit tests in containers (Run python linters for el9toel10 and common repositories on python ...	1m 19s
Run unit tests in containers (Run unit tests for el8toel9 and common repositories on python 3.9, ...	56s
Run unit tests in containers (Run python linters for el8toel9 and common repositories on python 3...	1m 39s
Run unit tests in containers (Run unit tests for el8toel9 and common repositories on python 3.6, ...	1m 27s
Run unit tests in containers (Run python linters for el8toel9 and common repositories on python 3...	3m 49s
Run unit tests in containers (Run unit tests for el7toel8 and common repositories on python 3.6, ...	1m 21s
Run unit tests in containers (Run python linters for el7toel8 and common repositories on python 3...	4m 19s
Run unit tests in containers (Run unit tests for el7toel8 and common repositories on python 2.7, ...	1m 45s
Run unit tests in containers (Run python linters for el7toel8 and common repositories on python 2...	7m 0s
	26m 38s

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