## Description
> This PR adds a selection dropdown for the HTTP Version in the REST API
and GraphQL plugins.
#### PR fixes following issue(s)
Fixes#28226
#### Type of change
- New feature (non-breaking change which adds functionality)
## Testing
#### How Has This Been Tested?
> Please describe the tests that you ran to verify your changes. Also
list any relevant details for your test configuration.
> Delete anything that is not relevant
- [x] Manual
- [ ] JUnit
- [ ] Jest
- [ ] Cypress
>
>
#### Test Plan
> Add Testsmith test cases links that relate to this PR
>
>
#### Issues raised during DP testing
> Link issues raised during DP testing for better visiblity and tracking
(copy link from comments dropped on this PR)
>
>
>
## Checklist:
#### Dev activity
- [x] My code follows the style guidelines of this project
- [x] I have performed a self-review of my own code
- [x] I have commented my code, particularly in hard-to-understand areas
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [x] New and existing unit tests pass locally with my changes
- [ ] PR is being merged under a feature flag
#### QA activity:
- [ ] [Speedbreak
features](https://github.com/appsmithorg/TestSmith/wiki/Guidelines-for-test-plans#speedbreakers-)
have been covered
- [ ] Test plan covers all impacted features and [areas of
interest](https://github.com/appsmithorg/TestSmith/wiki/Guidelines-for-test-plans#areas-of-interest-)
- [ ] Test plan has been peer reviewed by project stakeholders and other
QA members
- [ ] Manually tested functionality on DP
- [ ] We had an implementation alignment call with stakeholders post QA
Round 2
- [ ] Cypress test cases have been added and approved by SDET/manual QA
- [ ] Added `Test Plan Approved` label after Cypress tests were reviewed
- [ ] Added `Test Plan Approved` label after JUnit tests were reviewed
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
- **New Features**
- Introduced support for selecting different HTTP protocol versions when
configuring APIs.
- **Enhancements**
- Improved user interface for API configuration with a new dropdown to
select HTTP protocol versions.
- **Bug Fixes**
- Fixed an issue to ensure that the API configuration now correctly
displays protocol labels in dropdown menus.
- **Documentation**
- Added user-friendly placeholders and titles for secure and fast API
connection settings.
- **Refactor**
- Enhanced internal methods to support the selection of HTTP protocol
versions for API actions.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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Co-authored-by: Aman Agarwal <aman@appsmith.com>
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