fix: truncating pre-existing output file when overwritten (#315)

See also here: https://stackoverflow.com/questions/3653132/file-openwrite-appends-instead-of-wiping-contents

Closes: #255
Closes: #329

---------

Signed-off-by: andreas hilti <[email protected]>

Author: andreas-hilti

src/cyclonedx/CliUtils.cs

@@ -154,7 +154,7 @@ public static async Task<int> OutputBomHelper(Bom bom, CycloneDXBomFormat format
                 }
             }
 
-            using var stream = filename == null ? Console.OpenStandardOutput() : File.OpenWrite(filename);
+            using var stream = filename == null ? Console.OpenStandardOutput() : File.Create(filename);
 
             switch (format)
             {
@@ -193,7 +193,7 @@ public static async Task<int> OutputBomHelper(Bom bom, ConvertFormat format, Spe
 
             bom.SpecVersion = outputVersion.HasValue ? outputVersion.Value : SpecificationVersionHelpers.CurrentVersion;
 
-            using var stream = filename == null ? Console.OpenStandardOutput() : File.OpenWrite(filename);
+            using var stream = filename == null ? Console.OpenStandardOutput() : File.Create(filename);
 
             switch (format)
             {