feature: add sourcemeta jsonschema linting to pre-commit

relates to #401

Author: kbroch-rivosinc

.github/workflows/regress.yml

@@ -12,10 +12,15 @@ on:
 jobs:
   regress-pre-commit:
     runs-on: ubuntu-latest
+    env:
+      SINGULARITY: 1
     steps:
-      - uses: actions/checkout@v4
+      - name: Clone Github Repo Action
+        uses: actions/checkout@v4
       - uses: actions/setup-python@v5
       - uses: pre-commit/[email protected]
+      - uses: sourcemeta/[email protected]
+      - run: jsonschema lint --exclude const_with_type --ignore schemas/json-schema-draft-07.json --resolve schemas/*.json schemas/*.json
   regress-smoke:
     needs: build-llvm
     runs-on: ubuntu-latest