Wrap the linear effect color filter in a makeWithWorkingColorSpace()

This enables more coordination with Skia's internal color management and
keeps behavior consistent now that that the SkSL of the generated linear
effect assumes its operating in a linear context.

Flag: EXEMPT bug fix
Bug: b/426596235
Change-Id: I12bae2f565b4c2f845eab5e337499257e27bfcbf