Incorrect composer.json psr-4 autoload directive

Tested by modifying composer.json repositories:

    "repositories": [
        {
            "type": "git",
            "url": "https://git.drupalcode.org/issue/cloudfront_cache_path_invalidate-3485969.git"
        },
        {
            "type": "composer",
            "url": "https://packages.drupal.org/8"
        }
    ],

And ran ddev composer require drupal/cloudfront_cache_path_invalidate:dev-3485969-incorrect-composer.json-psr-4

Result (no warnings!):

❯ ddev composer require drupal/cloudfront_cache_path_invalidate:dev-3485969-incorrect-composer.json-psr-4
./composer.json has been updated
Running composer update drupal/cloudfront_cache_path_invalidate
Loading composer repositories with package information
Updating dependencies
Lock file operations: 4 installs, 0 updates, 0 removals
  - Locking aws/aws-crt-php (v1.2.7)
  - Locking aws/aws-sdk-php (3.325.3)
  - Locking drupal/cloudfront_cache_path_invalidate (dev-3485969-incorrect-composer.json-psr-4 9f57dc8)
  - Locking mtdowling/jmespath.php (2.8.0)
Writing lock file
Installing dependencies from lock file (including require-dev)
Package operations: 4 installs, 0 updates, 0 removals
  - Syncing drupal/cloudfront_cache_path_invalidate (dev-3485969-incorrect-composer.json-psr-4 9f57dc8) into cache
  - Installing aws/aws-crt-php (v1.2.7): Extracting archive
  - Installing mtdowling/jmespath.php (2.8.0): Extracting archive
  - Installing aws/aws-sdk-php (3.325.3): Extracting archive
  - Installing drupal/cloudfront_cache_path_invalidate (dev-3485969-incorrect-composer.json-psr-4 9f57dc8): Cloning 9f57dc89ed from cache
3 package suggestions were added by new dependencies, use `composer suggest` to see details.
Generating optimized autoload files
44 packages you are using are looking for funding.
Use the `composer fund` command to find out more!
Found 4 security vulnerability advisories affecting 3 packages.
Run "composer audit" for a full list of advisories.

I've tested this patch on two different sites, and it works for me!