fix: rename class to AtlassianPluginSdk8210

[kittaakos]

This PR fixes the 8.2.10 class name

I get an error when I try to install 8.2.10 via brew:

brew install atlassian/tap/atlassian-plugin-sdk8210
==> Auto-updating Homebrew...
Adjust how often this is run with HOMEBREW_AUTO_UPDATE_SECS or disable with
HOMEBREW_NO_AUTO_UPDATE. Hide these hints with HOMEBREW_NO_ENV_HINTS (see `man brew`).
Error: No available formula with the name "atlassian/tap/atlassian-plugin-sdk8210". Did you mean atlassian/tap/atlassian-plugin-sdk827, atlassian/tap/atlassian-plugin-sdk, atlassian/tap/atlassian-plugin-sdk62, atlassian/tap/atlassian-plugin-sdk5 or atlassian/tap/atlassian-plugin-sdk4?
In formula file: /opt/homebrew/Library/Taps/atlassian/homebrew-tap/atlassian-plugin-sdk8210.rb
Expected to find class AtlassianPluginSdk8210, but only found: AtlassianPluginSdk.

[fredrikattebrant]

+1

[balsamiqAndrea]

+1