ci: Add large file pre-submit check (#433)

Signed-off-by: Ian Lewis <[email protected]>

Author: Ian Lewis

.github/workflows/pre-submit.lfs.yml

@@ -0,0 +1,21 @@
+name: LFS Warning
+
+on:
+  pull_request:
+    types: [assigned, opened, edited, reopened, synchronize, ready_for_review]
+
+permissions: read-all
+
+jobs:
+  large-file-check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@755da8c3cf115ac066823e79a1e1788f8940201b # v3.2.0
+      - uses: actionsdesk/lfs-warning@e5f9a4c21f4bee104db7c0f23954dde59e5df909 # v3.2
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          filesizelimit: 10MB
+          labelName: lfs-warning
+          exclusionPatterns: |
+            cli/slsa-verifier/testdata/**