Fix shellcheck CI step

.github/problem-matcher.json

@@ -0,0 +1,22 @@
+{
+    "problemMatcher": [
+      {
+        "owner": "shellcheck",
+        "pattern": [
+          {
+              "regexp": "^In\\s(.+)\\sline\\s(\\d+):$",
+              "file": 1,
+              "line": 2
+          },
+          {
+            "regexp": ".*"
+          },
+          {
+              "regexp": "(SC\\d+):\\s(.+)$",
+              "code": 1,
+              "message": 2
+          }
+      ]
+      }
+    ]
+  }

.github/workflows/ci.yml

@@ -9,5 +9,3 @@ jobs:
     - uses: actions/checkout@master
     - name: Run ShellCheck
       uses: ludeeus/action-shellcheck@master
-      with:
-        ignore: module-setup.sh