add catalog validation (#2)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

.github/workflows/validate-catalog.yaml

@@ -0,0 +1,27 @@
+name: catalog
+
+on:
+  pull_request:
+    branches:
+  push:
+    branches:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  validate:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        shell: bash -l {0}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v4
+        with:
+          python-version: "3.10"
+      - name: validate feedstock entry
+        uses: leap-stc/data-catalog-actions/leap-catalog@main
+        with:
+          single-feedstock: "./feedstock/catalog.yaml"