fix version output from file (#625)

dist/setup/index.js

@@ -73786,7 +73786,7 @@ function getToolVersion(tool, options) {
                 core.warning(`[warning]${stderr}`);
                 return '';
             }
-            return stdout;
+            return stdout.trim();
         }
         catch (err) {
             return '';

src/main.ts

@@ -133,7 +133,7 @@ async function getToolVersion(tool: string, options: string[]) {
       return '';
     }
 
-    return stdout;
+    return stdout.trim();
   } catch (err) {
     return '';
   }