Make version check resilient to HTTP client exceptions about pkp-lib

[jonasraoni]

@asmecher Please, check if this addresses the issue: #9767
I didn't check, but AFAICR the plugin gallery received a fix a long time ago.

[asmecher]

No, we experienced this during yesterday's outage, and I verified in the latest stable-3_4_0 that I could reproduce the problem locally.

[jonasraoni]

Hmm, I see this is a different error (SSL certificate problem: certificate has expired), that probably happened due to routing problems (requests to pkp.sfu.ca were landing on the wrong server). Anyway, better to update the catch() to handle everything.

[YvesLepidus]

We updated to TransferException, which is a more generic exception class that covers ConnectException and RequestException.

[asmecher]

Thanks, @YvesLepidus! Merged and cherry-picked forward to main.

[jonasraoni]

Just to give a status:

• stable_3_3_0
• Version: Fails if the user clicks on the link to check a new version.
• Plugin Gallery: Unable to load the plugin gallery.
• stable_3_4_0
• Version: Fails if the user clicks on the link to check a new version (admin/systemInfo?versionCheck=1).
• Plugin Gallery: A cache of the plugin gallery is loaded.

Possible improvements:

• Add cache for the version.xml.
• Add cache for the plugins.xml on stable-3_3_0.
• Display to the user that it's a cached version and explain that there was a failure (so a sysadmin might check what's wrong).