ci: run semgrep after basic linters

.github/workflows/linters.yml

@@ -10,13 +10,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: returntocorp/semgrep-action@v1
-        env:
-            SEMGREP_TIMEOUT: 120
-        with:
-            config: >-
-              r/python.lang.correctness
-              .github/helper/semgrep_rules
 
       - name: Set up Python 3.8
         uses: actions/setup-python@v2
@@ -25,3 +18,11 @@ jobs:
 
       - name: Install and Run Pre-commit
         uses: pre-commit/action@v2.0.3
+
+      - uses: returntocorp/semgrep-action@v1
+        env:
+            SEMGREP_TIMEOUT: 120
+        with:
+            config: >-
+              r/python.lang.correctness
+              .github/helper/semgrep_rules