Add support for Rails 7

[sunny]

Required to support the latest version of Rails.

Simplified the loop as well in order for automated tools such as dependabot to more easily create automated pull requests.

Use this in your Gemfile in the meantime:

# Using branch to support Rails 7
# https://github.com/the-refinery/sparkpost_rails/pull/89
gem "sparkpost_rails",
    git: "https://github.com/sunny/sparkpost_rails.git",
    branch: "allow-rails-seven"

[trueheart78]

Would it make sense to bump this to support support Rails 7.0.0 final?

[sunny]

Done!

[trueheart78]

Awesome!

[dpaola2]

Thanks for this. Wondering if this could be merged to master

[olliebennett]

I can confirm I've been using this branch in production for 2 months without any issues. Would love to see it released if possible! :)

[jmlagace]

Any updates on this merge request?

[brandoncc]

I'd love to see this merged :-)