ci: Remove inner quotes from shell variable

tcharding · tcharding · commit 8eb6c23eafb3 · 2022-09-05T10:48:47.000+10:00
shellcheck emits:

 SC2027: The surrounding quotes actually unquote this. Remove or escape them.

Remove inner quotes from shell variable so the feature is correctly printed.
diff --git a/contrib/test.sh b/contrib/test.sh
@@ -80,7 +80,7 @@ fi
 # Test each feature
 for feature in ${FEATURES}
 do
-    echo "********* Testing "$feature" *************"
+    echo "********* Testing $feature *************"
     cargo test --verbose --features="$feature"
 done
 
