[PR #1124/3a566999 backport][stable-1] Update postgresql_pg_hba.py #1151
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This is a backport of PR #1124 as merged into main (3a56699).
Fixes #1108
SUMMARY
Fixes #1108
ISSUE TYPE
COMPONENT NAME
postgresql_pg_hba.py
ADDITIONAL INFORMATION
The module was accessing dict values using square brackets, and apparently in this case, the old rule did not have 'options' set, and new one has.
Using the .get method is safer (returns None if key not set).
With this change, if oldrule does not have options set, and rule does(or the other way around), a PgHbaRuleChanged is raised, which will replace the old rule for the new, which is as expected.