[feat req] - enhance if-no-files-found

[codezninja]

What would you like to be added?

Support for if-no-files-found for some files to not fail completey

Lets say we are creating a generic step to upload files

        uses: actions/upload-artifact@v2
        with:
          name: java-artifact
          path: |
            ${{ github.workspace }}/target/*.war
            ${{ github.workspace }}/target/*.jar
          if-no-files-found: error

I would like it to error out only if it found 0 matches. If it found 1 match still pass through

Why is this needed?

To decrease the need to have conditional steps in the workflow to do file type checks.

[codezninja]

Actually looking through the source it seems like this should be supported but I'm getting an error even though one of the path should exist

[codezninja]

For now I've gotten around this but using []

      - name: Upload java artifact
        uses: actions/upload-artifact@v3
        with:
          name: java-artifact
          path: |
            ${{ github.workspace }}/target/*.[jw]ar
          if-no-files-found: error