Make acli app:new:from:drupal7 default to the latest AMA recommendations on d.o

[wimleers]

Motivation
#1543 added acli app:new:from:drupal7. 👍 Next steps in open sourcing: https://git.drupalcode.org/project/acquia_migrate/-/tree/recommendations is live.

So now let's get it all working together. Unfortunately, this made me hit an edge case in GitLab and/or PHP. I opened #1587 for that.

Ideally, we'd get the command to automatically download the latest, to allow you to omit --recommendations.

That'd be a much better UX than having to specify a long URL manually.

Proposed changes

Defaulting to automatically downloading the latest is a one-line change:

-    $recommendations_location = __DIR__ . '/../../../config/from_d7_recommendations.json';
+    $recommendations_location = "https://git.drupalcode.org/project/acquia_migrate/-/raw/recommendations/recommendations.json";

(plus the bugfix in #1587)

+    // PHP defaults to no user agent. (Drupal.org's) GitLab requires it.
+    // @see https://www.php.net/manual/en/filesystem.configuration.php#ini.user-agent
+    ini_set('user_agent', 'ACLI');
     $recommendations_resource = fopen($recommendations_location, 'r');

☝️ That's literally the whole PR! 😄

Alternatives considered
#1587 is the absolute minimum.

Testing steps
Before:

$ ./bin/acli app:new:from:drupal7 --directory=/tmp/foo  --stored-analysis tests/fixtures/drupal7/training.acquia.com/extensions.json 
🤖 Scanning Drupal 7 site.
👍 Found Drupal 7 site (7.70 to be precise) at <location unknown>, with 96 modules enabled!
🤖 Computing recommendations for this Drupal 7 site…
🥳 Great news: found 9 recommendations that apply to this Drupal 7 site, resulting in a composer.json with:
	- 11 packages
	- 1 patches
	- 4 modules to be installed!
🚀 Generated composer.json and committed to a new git repo.
…

After:

$ ./bin/acli app:new:from:drupal7 --directory=/tmp/foo  --stored-analysis tests/fixtures/drupal7/training.acquia.com/extensions.json 
🤖 Scanning Drupal 7 site.
👍 Found Drupal 7 site (7.70 to be precise) at <location unknown>, with 96 modules enabled!
🤖 Computing recommendations for this Drupal 7 site…
🥳 Great news: found 105 recommendations that apply to this Drupal 7 site, resulting in a composer.json with:
	- 46 packages
	- 1 patches
	- 64 modules to be installed!
🚀 Generated composer.json and committed to a new git repo.
…

Note: 11 → 46 packages, 4 → 64 modules!

[codecov]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (4affeb3) 91.76% compared to head (0307191) 91.76%.

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #1588   +/-   ##
=========================================
  Coverage     91.76%   91.76%           
  Complexity     1809     1809           
=========================================
  Files           124      124           
  Lines          6470     6471    +1     
=========================================
+ Hits           5937     5938    +1     
  Misses          533      533           

Files Changed	Coverage Δ
src/Command/App/NewFromDrupal7Command.php	77.39% <100.00%> (+0.15%)	⬆️

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[wimleers]

If this gets merged, #1587 can be closed.