fix(win): fix plugin startup / use FileAppender

[YOU54F]

issues on reading the plugin startup message when using system threads over tokio tasks, seem to be due to the RollingFileAppender

Built locally on a mac m1 (via docker) and tested in a windows VM using parallels

Plugin now start ups correctly, and maintains logs. fixes #42

Using the pact-plugin-driver with this change

https://github.com/pact-foundation/pact-plugins/pull/69/files#diff-e21b8ae9cb59f07bada083f39629f6fbc221a1c6ca0ad395799d0bad5f7bc941R290

in order to terminate child processes on windows, will fix the shut down issues.

Tested e2e with the avro plugin example in https://github.com/pact-foundation/pact-go/tree/master/examples/avro

[YOU54F]

Tested this out x-plat, in dotnet & pact-go. fixes the startup issues.

Shutdown issues on windows resolved by pact-foundation/pact-plugins#69

specifically this line https://github.com/pact-foundation/pact-plugins/pull/69/files#diff-0d68f182064e209fefba06eec9ce538b69dc667ef8fcba52143b0778cdb7b3ebR122

⚠️ Once the above PR is merged and released in the Pact FFI library, it means that any pact-avro-plugin usage prior to this change being applied, will cease to work (not just on windows, but on Linux/MacOS too), and therefore consumers of this library should be urged to update.

If they update to the latest version of the pact-avro-plugin that includes this release, it will work with the current FFI, and later versions of the FFI, consuming the above pact-plugin change.

So don't delay, update today 😅

[austek]

as the RollingFileAppender is not used anymore, there is no need to keep the settings for it

[YOU54F]

Removed now 👍🏾