ci: use public Sprocket action (#180)

* ci: use public Sprocket action
* ci: add sprocket check step

.github/workflows/sprocket-check.yaml

@@ -0,0 +1,13 @@
+name: Workflows Sprocket Check
+
+on: [push]
+
+jobs:
+    sprocket_check:
+        runs-on: ubuntu-latest
+        steps:
+        - uses: actions/checkout@v2
+        - name: Run sprocket
+          uses: stjude-rust-labs/[email protected]
+          with:
+            exclude-patterns: template

.github/workflows/sprocket-lint.yaml

@@ -7,21 +7,10 @@ jobs:
         runs-on: ubuntu-latest
         steps:
         - uses: actions/checkout@v2
-        - name: Set up Rust
-          uses: actions-rust-lang/setup-rust-toolchain@v1
-          with:
-            toolchain: nightly
-        - name: Install sprocket
-          run: |
-            cargo install sprocket
         - name: Run sprocket
-          run: |
-            EXITCODE=0
-            echo "Checking WDL files using \`sprocket lint\`."
-            shopt -s extglob
-            files=$(find ./!(template) -name '*.wdl')
-            for file in $files; do
-              echo "  [***] $file [***]"
-              sprocket lint "$file" || EXITCODE=$(($? || EXITCODE))
-            done
-            exit $EXITCODE
+          uses: stjude-rust-labs/[email protected]
+          with:
+            lint: true
+            exclude-patterns: template
+            deny-warnings: true
+            deny-notes: true