[5.3] fix preprocess rule if contains alias (pgsql)

[heelc29]

Summary of Changes

fix database exception in preprocessrule (new in #43992)

Only with PostgreSQL database

Testing Instructions

• create an contact
• create an menu item for the new contact
• open https://example.com/index.php?option=com_contact&view=contact&id={contact.id}:{contact.alias}

Actual result BEFORE applying this Pull Request

PDOException: SQLSTATE[22P02]: Invalid text representation: 7 ERROR:  invalid input syntax for type integer: "xx:xxx"
CONTEXT:  unnamed portal parameter $1 = '...'

redirect to home menu item (see also systemtests in upmerge pr #44456)

Expected result AFTER applying this Pull Request

redirect to contact menu item

Link to documentations

Please select:

• No documentation changes for docs.joomla.org needed
• No documentation changes for manual.joomla.org needed

[richard67]

I have tested this item ✅ successfully on 998dfad

Hint for other testers: The error mentioned in the actual result of the testing instructions is not shown anywhere on the site. It can be found in the database server log, e.g. on Ubuntu with PostgreSQL 14 in file "/var/log/postgresql/postgresql-14-main.log".

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[richard67]

@alikon Could you test this PR here with PostgreSQL?