This commit introduces proxy support for Reddit requests within the ASFFreeGames plugin, addressing issues #75 #76.

Users can now configure proxies for both general and Reddit-specific connections through the Proxy and RedditProxy settings in ASFFreeGamesOptions.cs.

Key changes:

- ASFFreeGamesOptions.cs: Added properties Proxy and RedditProxy to support proxy configuration for general and Reddit connections respectively.
- ASFFreeGamesOptionsLoader.cs: Updated to load proxy settings from configuration and environment variables.
- FreeGamesCommand.cs: Modified GetGames to utilize SimpleHttpClientFactory and its CreateForReddit method, enabling the use of the configured Reddit proxy.
- RedditHelper.cs: Replaced WebBrowser usage with SimpleHttpClient for Reddit communication, allowing proxy support.

These improvements enhance the plugin's flexibility by allowing users to leverage proxy servers for Reddit interactions.

…limiting from Reddit.

* Added checks for remaining rate limit and reset time to implement appropriate delays based on Reddit's response headers.

Bumps [actions/checkout](https://github.com/actions/checkout) from 4.1.6 to 4.1.7.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4.1.6...v4.1.7)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

GetStreamAsync() internal request object use configured http version

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 4.1.7 to 4.1.8.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v4.1.7...v4.1.8)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

…s/checkout-4.1.7

Bump actions/checkout from 4.1.6 to 4.1.7

…s/download-artifact-4.1.8

Bump actions/download-artifact from 4.1.7 to 4.1.8

…ent optimizations (#84, improvements)

This commit addresses several improvements and bug fixes for the ASF-FreeGames plugin:

* Fixed JSON serialization issue:
    * Resolved compatibility problems with recent ASF versions causing issues with `config.json` loading (`ASFFreeGamesOptionsSaver.cs`).
    * Implemented a new `SaveOptions` method that validates and writes configuration options to the file in a more robust way.
    * Added unit tests to ensure proper JSON serialization (`ASFFreeGamesOptionsSaverTests.cs`).
* Enhanced error handling:
    * Improved error message when encountering issues during `config.json` loading (`ASFFreeGames.cs`).
    * Provided more informative logging in case of unexpected errors (`ASFFreeGamesOptionsLoader.cs`).
* Optimized HttpClient usage:
    * Introduced `SimpleHttpClient` class with improved configuration options (`SimpleHttpClient.cs`).
    * Set default `MaxConnectionsPerServer` to limit resource usage (`SimpleHttpClient.cs`).
    * Implemented a workaround for missing `CheckCertificateRevocationList` property (`SimpleHttpClient.cs`).
    * Improved stream handling in `HttpStreamResponse` class to gracefully handle potential null streams (`SimpleHttpClient.cs`, `HttpStreamResponse.cs`).
* Minor improvements:
    * Added comments and code formatting for better readability.
    * Updated code to adhere to modern C# practices.

These changes ensure compatibility with recent ASF versions, provide better error handling for configuration issues, and optimize the performance and reliability of the plugin's network communication.

Improve ASF-FreeGames: JSON serialization, error handling, and HttpClient optimizations