Make sure manifest object returned before logging actions

[joomdonation]

Pull Request for Issue #22221.

Summary of Changes

This PR added some check to make sure $installer return a manifest object before logging install/uninstall/update action. Although it doesn't fix the root of the error, it is added to make sure install/uninstall/update process still working well as expected when action logs is enabled.

Testing Instructions

1. Install latest staging (or 3.9 beta)
2. Follow the instructions at Uninstall library extension type throws error #22221 , install/uninstall test library to confirm the issue
3. Apply patch, confirm the fatal error does not happen again

Documentation Changes Required

None

[ReLater]

I have tested this item ✅ successfully on ad8d53c

Several libraries and packages with libraries successfully installed/uninstalled.

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[joomdonation]

Could someone help testing this simple PR? The fatal error when uninstall library should be fixed for 3.9

[Quy]

I have tested this item ✅ successfully on ad8d53c

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[Quy]

RTC

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/22237.}