Add cmd/osgen coverage upload to unit CI workflow

Signed-off-by: Sean Chittenden <sean.chittenden@crowdstrike.com>

Author: sean-

.github/workflows/test-unit.yml

@@ -22,10 +22,17 @@ jobs:
         if: matrix.os != 'ubuntu-latest'
       - run: make test-unit race=true coverage=true
         if: matrix.os == 'ubuntu-latest'
+      - name: Test cmd/osgen (separate module)
+        if: matrix.os == 'ubuntu-latest'
+        run: |
+          cd cmd/osgen
+          rm -rf tmp && mkdir -p tmp/osgen
+          go test -race -cover ./... -args -test.gocoverdir=${{ github.workspace }}/cmd/osgen/tmp/osgen
+          go tool covdata textfmt -i=tmp/osgen -o ${{ github.workspace }}/tmp/osgen.cov
       - uses: codecov/codecov-action@v5
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
-          files: tmp/unit.cov
+          files: tmp/unit.cov,tmp/osgen.cov
           flags: unit
         if: matrix.os == 'ubuntu-latest'