Add trailing newline to AnalyzerReleases.Unshipped.md

Author: mpidash

src/NetAnalyzers/Core/AnalyzerReleases.Unshipped.md

@@ -4,4 +4,4 @@
 
 Rule ID | Category | Severity | Notes
 --------|----------|----------|-------
-CA1514 | Maintainability | Info | AvoidLengthCheckWhenSlicingToEndAnalyzer, [Documentation](https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1514)
+CA1514 | Maintainability | Info | AvoidLengthCheckWhenSlicingToEndAnalyzer, [Documentation](https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1514)