TEMP COMMIT: use branch of MultivariatePolynomials.jl

Author: AayushSabharwal

.github/workflows/ci.yml

@@ -34,6 +34,16 @@ jobs:
           arch: ${{ matrix.arch }}
       - uses: julia-actions/cache@v2
       - uses: julia-actions/julia-buildpkg@v1
+      - uses: actions/checkout@v4
+        with:
+          repository: AayushSabharwal/MultivariatePolynomials.jl
+          ref: as/poly-merge-nonconcrete
+          path: upstream
+      - name: Use branch
+        shell: julia --color=yes --project=@. {0}
+        run: |
+          using Pkg
+          Pkg.develop(PackageSpec(; path = "upstream"))
       - uses: julia-actions/julia-runtest@v1
         with:
           depwarn: error