ci: Fix nompi set exclusion

Author: enwask

.github/workflows/pytest-core-nompi.yml

@@ -98,7 +98,6 @@ jobs:
           arch: "clang"
           language: "openmp"
           sympy: "1.12"
-          set: base
           test-path: 'tests/'
 
         - name: pytest-docker-py310-gcc-omp
@@ -126,7 +125,6 @@ jobs:
           arch: "gcc"
           language: "C"
           sympy: "1.14"
-          set: base
           test-path: 'tests/test_operator.py'
           suffix: 'operator'
 
@@ -148,6 +146,13 @@ jobs:
           test-set: ''
           test-path: 'tests/test_operator.py'
 
+        exclude:
+        - name: pytest-osx-py312-clang-omp
+          set: adjoint
+
+        - name: pytest-docker-py313-gcc-nogil
+          set: adjoint
+
     steps:
     - name: Checkout devito
       uses: actions/checkout@v4