collada tag contains unspecified attribute xmlns:xsi for collada 1.4.1

When blender exports a collada file the collada tag contains:
``

The last attribute xmlns:xsi is not defined in the khronos documentation, see
page 5-22 in https://www.khronos.org/files/collada_spec_1_4.pdf

I suspect that line 101 in ColladaSWStreamWriter.cpp should be removed.

`if ( getCOLLADAVersion() == COLLADA_1_4_1 )
{
appendAttribute ( CSWC::CSW_ATTRIBUTE_XMLNS, CSWC::CSW_NAMESPACE_1_4_1 );
appendAttribute ( CSWC::CSW_ATTRIBUTE_VERSION, CSWC::CSW_VERSION_1_4_1 );
// next line maybe needs to be removed here:
appendAttribute ( CSWC::CSW_ATTRIBUTE_XMLNS_XSI, CSWC::CSW_XMLNS_XSI_1_5_0 );
}`

Inspect line 101 in ColladaSWStreamWriter.cpp and compare the COLLADA 1.4.1 root attributes with the linked Khronos specification. Confirm the generated 1.4.1 header no longer includes the unspecified xmlns:xsi attribute, then validate the resulting COLLADA output.

Written by the indexing model from the issue text.