Fix new Typescript rules

Author: brrygrdn

dist/index.js

@@ -65,7 +65,11 @@ async function check (args: any): Promise<void> {
       process.exit(1)
     }
   } catch (exception) {
-    console.log(exception.message)
+    if (exception instanceof Error) {
+      console.log(exception.message)
+    } else {
+      console.log('There was an unexpected error.')
+    }
     process.exit(1)
   }
 }

src/dry-run.ts

@@ -44,7 +44,11 @@ export async function run (): Promise<void> {
       core.setFailed(`Api Error: (${error.status}) ${error.message}`)
       return
     }
-    core.setFailed(error.message)
+    if (error instanceof Error) {
+      core.setFailed(error.message)
+    } else {
+      core.setFailed('There was an unexpected error.')
+    }
   }
 }