Patch around check-jsonschema not allowing duplicate anchors (#78)

python-jsonschema/check-jsonschema#121

Author: innovate-invent

.github/workflows/test_validate.yaml

@@ -33,7 +33,10 @@ jobs:
           cache-dependency-path: .github/workflows/validate_requirements.txt
       - run: pip install -r .github/workflows/validate_requirements.txt
       - name: Validate grammar tests
-        run: "check-jsonschema --schemafile grammar_schema.yml ${{ matrix.manifest }}"
+        run: >
+          python -c 'import check_jsonschema; from check_jsonschema.loaders import instance; import ruamel.yaml; instance.LOAD_FUNC_BY_TAG["yaml"] = ruamel.yaml.YAML(typ="safe", pure=True).load; check_jsonschema.main()' --schemafile grammar_schema.yml ${{ matrix.manifest }}
+        # TODO https://github.com/python-jsonschema/check-jsonschema/pull/121
+        #run: "check-jsonschema --schemafile grammar_schema.yml ${{ matrix.manifest }}"
 
   list-functions:
     runs-on: ubuntu-latest
@@ -57,4 +60,7 @@ jobs:
           cache-dependency-path: .github/workflows/validate_requirements.txt
       - run: pip install -r .github/workflows/validate_requirements.txt
       - name: Validate function spec
-        run: "check-jsonschema --schemafile function_schema.yml ${{ matrix.manifest }}"
+        run: >
+          python -c 'import check_jsonschema; from check_jsonschema.loaders import instance; import ruamel.yaml; instance.LOAD_FUNC_BY_TAG["yaml"] = ruamel.yaml.YAML(typ="safe", pure=True).load; check_jsonschema.main()' --schemafile function_schema.yml ${{ matrix.manifest }}
+        # TODO https://github.com/python-jsonschema/check-jsonschema/pull/121
+        # run: "check-jsonschema --schemafile function_schema.yml ${{ matrix.manifest }}"