Build(deps-dev): Update composer/composer requirement from ^1.10.5 to ^2.0.2

[dependabot-preview]

Updates the requirements on composer/composer to permit the latest version.

Release notes

Sourced from composer/composer's releases.

2.0.2

• Fixed regression handling composer show -s in projects where no version can be guessed from VCS
• Fixed regression handling partial updates/require when a lock file was missing
• Fixed interop issue with plugins that need to update dist URLs of packages, see docs if you need this

Changelog

Sourced from composer/composer's changelog.

[2.0.2] 2020-10-25

• Fixed regression handling composer show -s in projects where no version can be guessed from VCS
• Fixed regression handling partial updates/require when a lock file was missing
• Fixed interop issue with plugins that need to update dist URLs of packages, see docs if you need this

[2.0.1] 2020-10-24

• Fixed crash on PHP8

[2.0.0] 2020-10-24

• Fixed proxy handling issues when combined with our new curl-based downloader
• Fixed solver bug resulting in endless loops in some cases
• Fixed solver output being extremely long due to learnt rules
• Fixed solver bug with multi literals
• Fixed a couple minor regressions

[2.0.0-RC2] 2020-10-14

• Breaking: Removed OperationInterface::getReason as the data was not accurate
• Added automatic removal of packages which are not required anymore whenever an update is done, this will purge packages previously left over by partial updates and require/remove
• Added shorthand aliases -w for --with-dependencies and -W for --with-all-dependencies on update/require/remove commands
• Added COMPOSER_DEBUG_EVENTS=1 env var support for plugin authors to figure out which events are triggered when
• Added setCustomCacheKey to PreFileDownloadEvent and fixed a cache bug for integrations changing the processed url of package archives
• Added Composer\Util\SyncHelper for plugin authors to deal with async Promises more easily
• Added $composer->getLoop()->getHttpDownloader() to get access to the main HttpDownloader instance in plugins
• Added a non-zero exit code (2) and warning to remove command when a package to be removed could not be removed
• Added --apcu-autoloader-prefix (or --apcu-prefix for dump-autoload command) flag to let people use apcu autoloading in a deterministic output way if that is needed
• Fixed version guesser to look at remote branches as well as local ones
• Lots of minor bug fixes and improvements

[2.0.0-RC1] 2020-09-10

• Added more advanced filtering to avoid loading all versions of all referenced packages when resolving dependencies, which should reduce memory usage further in some cases
• Added support for many new lib-* packages in the platform repository and improved version detection for some ext-* and lib-* packages
• Added an --ask flag to create-project command to make Composer prompt for the install dir name, useful for project install instructions
• Added support for tar in artifact repositories
• Added a cache-read-only config option to make the cache usable in read only mode for containers and such
• Added better error reporting for a few more specific cases
• Added a new optional available-package-patterns attribute for v2-format Composer repositories, see UPGRADE for details
• Fixed more PHP 8 compatibility issues
• Lots of minor bug fixes for regressions

[2.0.0-alpha3] 2020-08-03

• Breaking: Zip archives loaded by artifact repositories must now have a composer.json on top level, or a max of one folder on top level of the archive
• Added --no-dev support to show and outdated commands to skip dev requirements
• Added support for multiple --repository flags being passed into the create-project command, only useful in combination with --add-repository to persist them to composer.json
• Added a new optional list API endpoint for v2-format Composer repositories, see UPGRADE for details

Commits

• 74e8c71 Release 2.0.2
• 7fcf559 Update changelog
• b72dc7b Clarify --lock option on update further
• 8627f1c Clear up plugin doc for modifying downloads
• 860a67b Update --lock docs, fixes #9315
• 4b8c2aa Fix default version to be semver parseable, fixes #9342
• 3dfbd9e Add plugin-modifies-downloads to docs, refs #9339
• 0cca80f Merge pull request #9341 from schramm-michael/schramm-michael-typo-consumer-key
• 5bdb0cf Merge pull request #9339 from Seldaek/fix-plugin-order
• 769ce48 Fix typo
• Additional commits viewable in compare view

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Superseded by #224.