Use stable version of `input-http`

[arogachev]

Q	A
Is bugfix?	❌
New feature?	❌
Breaks BC?	❌

Related - https://github.com/yiisoft/demo/pull/613

[what-the-diff[bot]]

PR Summary

• Updated Pull Request Template The 'Fixed issues' line was removed from the .github/PULL_REQUEST_TEMPLATE.md file. This means the developers no longer need to specify the issues fixed in each pull request, making the process simpler.

• Changed Version Requirement The required version for the yiisoft/input-http in the composer.json file was updated from dev-master to ^1.0. This change solidifies the dependency on a stable version (^1.0) instead of the changeable master version (dev-master), ensuring a more predictable and dependable execution of the code.