Update .NET Runtimes to latest version (#6967)

Co-authored-by: Eric StJohn <[email protected]>

Author: github-actions[bot]

eng/Versions.props

@@ -77,8 +77,8 @@
     <!-- Test-only Dependencies -->
     <ApprovalTestsVersion>5.4.7</ApprovalTestsVersion>
     <BenchmarkDotNetVersion>0.13.1</BenchmarkDotNetVersion>
-    <DotNetRuntime60Version>6.0.9</DotNetRuntime60Version>
-    <DotNetRuntime80Version>8.0.0</DotNetRuntime80Version>
+    <DotNetRuntime60Version>6.0.26</DotNetRuntime60Version>
+    <DotNetRuntime80Version>8.0.1</DotNetRuntime80Version>
     <FluentAssertionVersion>5.10.2</FluentAssertionVersion>
     <MicrosoftCodeAnalysisTestingVersion>1.1.2-beta1.23431.1</MicrosoftCodeAnalysisTestingVersion>
     <MicrosoftDotNetXUnitExtensionsVersion>8.0.0-beta.24059.4</MicrosoftDotNetXUnitExtensionsVersion>