Stale issue workflow improvements

[aaronpowell]

• Changing how stale issues are detected
• Adding new workflow to allow people to manually extend the stale period

[Copilot]

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

[github-actions]

Package	Line Rate	Branch Rate	Complexity	Health
CommunityToolkit.Aspire.EventStore	100%	100%	46	✔
CommunityToolkit.Aspire.Hosting.ActiveMQ	70%	27%	144	➖
CommunityToolkit.Aspire.Hosting.ActiveMQ.MassTransit	1%	0%	14	❌
CommunityToolkit.Aspire.Hosting.Azure.DataApiBuilder	100%	100%	22	✔
CommunityToolkit.Aspire.Hosting.Azure.StaticWebApps	100%	100%	28	✔
CommunityToolkit.Aspire.Hosting.Bun	81%	71%	54	✔
CommunityToolkit.Aspire.Hosting.Deno	84%	75%	72	✔
CommunityToolkit.Aspire.Hosting.EventStore	90%	71%	62	✔
CommunityToolkit.Aspire.Hosting.Golang	94%	50%	16	✔
CommunityToolkit.Aspire.Hosting.Java	69%	72%	120	➖
CommunityToolkit.Aspire.Hosting.Meilisearch	61%	27%	94	➖
CommunityToolkit.Aspire.Hosting.Ngrok	59%	50%	58	❌
CommunityToolkit.Aspire.Hosting.NodeJS.Extensions	90%	68%	92	✔
CommunityToolkit.Aspire.Hosting.Ollama	65%	64%	198	➖
CommunityToolkit.Aspire.Hosting.Python.Extensions	69%	50%	86	➖
CommunityToolkit.Aspire.Hosting.Rust	94%	83%	16	✔
CommunityToolkit.Aspire.Hosting.SqlDatabaseProjects	74%	61%	96	➖
CommunityToolkit.Aspire.Hosting.Sqlite	96%	96%	38	✔
CommunityToolkit.Aspire.MassTransit.RabbitMQ	100%	100%	30	✔
CommunityToolkit.Aspire.Meilisearch	97%	92%	68	✔
CommunityToolkit.Aspire.Microsoft.Data.Sqlite	89%	85%	52	✔
CommunityToolkit.Aspire.Microsoft.EntityFrameworkCore.Sqlite	50%	50%	88	❌
CommunityToolkit.Aspire.OllamaSharp	87%	82%	68	✔
Summary	75% (2980 / 3984)	63% (765 / 1208)	1562	➖

Minimum allowed line rate is 60%