Update stryker test CI

* Limit stryker tests to Javascript changes
* Prefix stryker tests with javascript-test- for consistency

Author: mpkorstanje

.github/workflows/stryker-javascript.yml renamed to .github/workflows/test-javascript-stryker.yml

@@ -1,12 +1,20 @@
-name: stryker-javascript
+name: test-javascript-stryker
 
 on:
   push:
-    branches-ignore:
-      - renovate/**
+    branches:
+      - main
+    paths:
+      - javascript/**
+      - testdata/**
+      - .github/**
   pull_request:
     branches:
       - main
+    paths:
+      - javascript/**
+      - testdata/**
+      - .github/**
 
 jobs:
   stryker-javascript: