feat(snyk): add snyk code scanning

.github/workflows/snyk.yml

@@ -0,0 +1,49 @@
+# Copyright 2024 Ibrahim Mbaziira
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: Snyk
+on: push
+jobs:
+  snyk:
+    runs-on: ubuntu-latest
+    environment: dev
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Cache dependencies
+        uses: actions/cache@v4
+        with:
+          path: |
+            app-service/.cargo
+            app-service/target/
+            auth-service/.cargo
+            auth-service/target/
+          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: ${{ runner.os }}-cargo-
+
+      - name: Install Rust
+        run: |
+          rustup set profile minimal
+          rustup toolchain install 1.77 -c rust-docs
+          rustup default 1.77
+
+      - uses: snyk/actions/setup@master
+        id: snyk
+
+      - name: Run Snyk to check for vulnerabilities
+        working-directory: ./auth-service
+        run: snyk test --org=${{ secrets.SNYK_ORG }}
+        env:
+          SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}