Add an updates subcommand to kbcheck

.github/workflows/tools-tests.yml

@@ -0,0 +1,29 @@
+name: tools-tests
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+jobs:
+  rust-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: "Checkout"
+        uses: actions/checkout@v3
+      - name: "Cache"
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            ./target/
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+      - name: "Rust toolchain"
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+      - name: "Test"
+        run: cargo test