Add extended HTTP methods and automated release tagging

[emvakar]

Motivation

• Expand supported HTTP verbs so the network layer can handle additional request types beyond GET/POST/PUT/DELETE/PATCH.
• Automate tagging and GitHub release creation after successful tests on main to streamline CI/CD and releases.

Description

• Added new HTTP methods to HTTPMethod: head, options, trace, and connect in Sources/EKNetwork/NetworkManager.swift and updated API docs (API.md, API_RU.md).
• Updated unit tests to cover the new methods in Tests/EKNetworkTests/* (including NetworkManagerTests.swift, AdditionalCoverageTests.swift, ExtendedCoverageTests.swift, ExtendedTestSuite.swift).
• Updated docs and README (README.md, README_RU.md) and CHANGELOG.md to reflect the expanded method set and CI changes.
• Added a CI release job to .github/workflows/swift.yml that reads Sources/EKNetwork/Version.swift, creates a git tag v<version>, pushes it, and creates a GitHub release using softprops/action-gh-release@v2 after the test job succeeds on main.

Testing

• No automated tests were executed locally as part of this change; test sources were updated to include assertions for the new HTTP methods.
• CI test job (defined in .github/workflows/swift.yml) will run the full test suite and code coverage before the release job runs on main.
• All test files were updated so the existing suite exercises the added methods; CI will report pass/fail and gate release creation.

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Codex Task