chore: switch Docker base image to net11.0 GA runtime-deps tag

[dnyw4l3n13]

Description

How Has This Been Tested

• All unit tests pass.
• All integration tests pass.
• Manual Testing:

Types of changes

• Docs change
• Refactoring
• Dependency upgrade
• Additional Unit Tests\Integration Tests
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing
  functionality to change)
• Removed no-longer used code

Deployment Configuration Changes

• Requires deployment configuration changes as specified below and in CHANGELOG.md

Checklist

• I have added tests to cover my changes.
• Unreleased section of CHANGELOG.md has been updated with details of this PR.
• No user-controlled or step-output value is string-interpolated directly into a run:/script: body (workflow or composite action); pass it via step-level env: and reference $VAR (bash) or process.env.VAR (github-script) instead.

[credfeto]

Roslyn analyzer findings

Source	Rule	Level	File	Line	Suppressed	Message
DotNet	CA2000	error	src/BuildBot/Helpers/ServerStartup.cs	127	yes	Call System.IDisposable.Dispose on object created by 'CreateLogger()' before all references to it are out of scope
DotNet	IL2026	error	src/BuildBot/Helpers/Endpoints.CloudFormation.cs	26	yes	Using member 'Microsoft.AspNetCore.Builder.EndpointRouteBuilderExtensions.MapPost(IEndpointRouteBuilder, String, Delegate)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. This API may perform reflection on the supplied delegate and its parameters. These types may be trimmed if not directly referenced.
DotNet	IL2026	error	src/BuildBot/Helpers/Endpoints.Watchtower.cs	19	yes	Using member 'Microsoft.AspNetCore.Builder.EndpointRouteBuilderExtensions.MapPost(IEndpointRouteBuilder, String, Delegate)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. This API may perform reflection on the supplied delegate and its parameters. These types may be trimmed if not directly referenced.
DotNet	IL2026	error	src/BuildBot/Helpers/Endpoints.Test.cs	22	yes	Using member 'Microsoft.AspNetCore.Builder.EndpointRouteBuilderExtensions.MapGet(IEndpointRouteBuilder, String, Delegate)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. This API may perform reflection on the supplied delegate and its parameters. These types may be trimmed if not directly referenced.
DotNet	IL2026	error	src/BuildBot/Helpers/Endpoints.GitHub.cs	19	yes	Using member 'Microsoft.AspNetCore.Builder.EndpointRouteBuilderExtensions.MapPost(IEndpointRouteBuilder, String, Delegate)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. This API may perform reflection on the supplied delegate and its parameters. These types may be trimmed if not directly referenced.
DotNet	IL2026	error	src/BuildBot/Helpers/Endpoints.GitHub.cs	29	yes	Using member 'Microsoft.AspNetCore.Builder.EndpointRouteBuilderExtensions.MapPost(IEndpointRouteBuilder, String, Delegate)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. This API may perform reflection on the supplied delegate and its parameters. These types may be trimmed if not directly referenced.
DotNet	IL2026	error	src/BuildBot/Helpers/Endpoints.GitHub.cs	39	yes	Using member 'Microsoft.AspNetCore.Builder.EndpointRouteBuilderExtensions.MapPost(IEndpointRouteBuilder, String, Delegate)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. This API may perform reflection on the supplied delegate and its parameters. These types may be trimmed if not directly referenced.
DotNet	IL2026	error	src/BuildBot/obj/Release/net11.0/Microsoft.AspNetCore.Http.RequestDelegateGenerator/Microsoft.AspNetCore.Http.RequestDelegateGenerator.RequestDelegateGenerator/GeneratedRouteBuilderExtensions.g.cs	1014	yes	Using member 'Microsoft.AspNetCore.Http.HttpResponseJsonExtensions.WriteAsJsonAsync(HttpResponse, TValue, JsonSerializerOptions, CancellationToken)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.