test(deps): update dependency composer to v2.6.3

[renovate]

This PR contains the following updates:

Package	Update	Change
composer	patch	2.6.2 -> 2.6.3

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Release Notes

composer/composer (composer)

v2.6.3

Compare Source

• Added audit.abandoned config setting. Can be set to ignore, report (current default) or fail (future default in 2.7) to make the audit command report abandoned packages as a security problem (#​11639)
  • Added a warning when duplicates files autoload rules are detected (#​11109)
  • Fixed unhandled promise rejection regression (#​11620)
  • Fixed loading of root aliases on path repo packages when doing partial updates (#​11632)
  • Fixed archive command not producing the correct output if the temp dir is a symlink (#​11636)
  • Fixed some replaced packages being incorrectly missing when unlocked in a partial update (#​11629)

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