Drupal 10 compatability

I couldn't get the patch in #2 to apply. It would patch the view module info yml ok but fail on the main modules info.yml.

I tried to recreate it and my patch was exactly the same as kalpaitchs. V weird.

I've created my own version that closes the bracket on the modules description and adds a package entry in the YML. This applies ok for me.

I suggest that if anyone has trouble with one or the other then try the other.

I've committed the updated version constraints to the 8.x-2.x branch but composer still won't load the dev release alongside a clean install of Drupal 10.

❯ ddev exec composer require drupal/govuk_notify:dev-2.x
./composer.json has been updated
Running composer update drupal/govuk_notify
Loading composer repositories with package information
Updating dependencies
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - php-http/guzzle6-adapter v0.1.0 requires guzzlehttp/guzzle ~6.0 -> found guzzlehttp/guzzle[6.0.0, ..., 6.5.x-dev] but the package is fixed to 7.5.1 (lock file version) by a partial update and that version does not match. Make sure you list it as an argument for the update command.
    - php-http/guzzle6-adapter[v0.2.0, ..., v0.2.1] require php-http/client-tools ^0.1 -> could not be found in any version, there may be a typo in the package name.
    - php-http/guzzle6-adapter[dev-master, v0.3.0, ..., v0.4.0, v1.1.0, ..., v1.1.1, v2.0.2, ..., 2.x-dev] require guzzlehttp/guzzle ^6.0 -> found guzzlehttp/guzzle[6.0.0, ..., 6.5.x-dev] but the package is fixed to 7.5.1 (lock file version) by a partial update and that version does not match. Make sure you list it as an argument for the update command.
    - php-http/guzzle6-adapter[v2.0.0, ..., v2.0.1] require php ^7.1 -> your php version (8.1.11) does not satisfy that requirement.
    - drupal/govuk_notify dev-2.x requires php-http/guzzle6-adapter * -> satisfiable by php-http/guzzle6-adapter[dev-master, v0.1.0, ..., v0.4.1, v1.0.0, v1.1.0, v1.1.1, v2.0.0, v2.0.1, v2.0.2, 2.x-dev].
    - Root composer.json requires drupal/govuk_notify dev-2.x -> satisfiable by drupal/govuk_notify[dev-2.x].

Potential causes:
 - A typo in the package name
 - The package is not available in a stable-enough version according to your minimum-stability setting
   see <https://getcomposer.org/doc/04-schema.md#minimum-stability> for more details.
 - It's a private package and you forgot to add a custom repository to find it

Read <https://getcomposer.org/doc/articles/troubleshooting.md> for further common problems.

Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.

Installation failed, reverting ./composer.json and ./composer.lock to their original content.
Failed to execute command composer require drupal/govuk_notify:dev-2.x: exit status 2

I'll take a look tomorrow.

I've reverted the commit that allows Drupal 10 in the version constraints.

govuk_notify currently has a composer requirement for php-http/guzzle6-adapter, but drupal/core-recommended for Drupal 10 requires Guzzle 7.

So we will need separate releases for govuk_notify to support 9 using guzzle6-adapter and 10 using guzzle7-adapter.

We now have 3.0.0 to support Drupal 10.