Send a warning in case Jetpack is pinned but the pinned version is not available anymore

[rinatkhaziev]

Description

Implements an error message in case the pinned version of Jetpack is not available at VIP anymore.

Previously we'd silently fall back to maximum allowed version for this specific core version, now we also log the following message:

Warning: Jetpack loading error: 8.7 could not be loaded, loading 12.9 instead.

This is mostly for develop environment purposes as mu-plugins image got extremely large, so we're going to remove some less-used versions locally. (Nothing changes for production)

Plugin Updated: Jetpack Loader

When trying to load a version of Jetpack that's not available anymore an error message is going to be logged in addition to falling back to one of compatible versions of Jetpack.

Pre-review checklist

Please make sure the items below have been covered before requesting a review:

• This change works and has been tested locally (or has an appropriate fallback).
• This change works and has been tested on a Go sandbox.
• This change has relevant unit tests (if applicable).
• This change uses a rollout method to ease with deployment (if applicable - especially for large scale actions that require writes).
• This change has relevant documentation additions / updates (if applicable).
• I've created a changelog description that aligns with the provided examples.

Pre-deploy checklist

• VIP staff: Ensure any alerts added/updated conform to internal standards (see internal documentation).

Steps to Test

[codecov]

Codecov Report

Attention: 3 lines in your changes are missing coverage. Please review.

Comparison is base (8a37fe7) 28.86% compared to head (b63d44e) 28.83%.

Files	Patch %	Lines
jetpack.php	0.00%	3 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             develop    #5093      +/-   ##
=============================================
- Coverage      28.86%   28.83%   -0.03%     
  Complexity      4767     4767              
=============================================
  Files            279      279              
  Lines          20995    20986       -9     
=============================================
- Hits            6060     6052       -8     
+ Misses         14935    14934       -1     

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[sonarqubecloud]

Quality Gate passed

Kudos, no new issues were introduced!

0 New issues
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud