fix the check to include unittest and the version

.github/workflows/ci.yml

@@ -142,7 +142,7 @@ jobs:
         run: helm plugin list | sed 1d | awk '{print $1}' | grep -q '^unittest$'
 
       - name: Check that helm-unittest version is v0.3.4
-        run: helm plugin list | sed 1d | awk '{print $2}' | grep -q '^v0.3.4$'
+        run: helm plugin list | sed 1d | awk -v OFS='\t' '{print $1, $2}' | grep $'unittest\t0.3.4$'