test quickfix: microk8s crawls were not running due to exceeding CI resource capacity

to fix:
- disable metrics-server
- lower per-browser mem/cpu requirements

.github/workflows/microk8s-ci.yaml

@@ -18,7 +18,7 @@ jobs:
       - uses: balchua/microk8s-actions@v0.3.1
         with:
           channel: '1.25/stable'
-          addons: '["dns", "helm3", "hostpath-storage", "registry", "metrics-server", "host-access"]'
+          addons: '["dns", "helm3", "hostpath-storage", "registry", "host-access"]'
       - name: Checkout
         uses: actions/checkout@v3
 

chart/test/microk8s-ci.yaml

@@ -7,3 +7,8 @@ frontend_image: "localhost:32000/webrecorder/browsertrix-frontend:latest"
 
 backend_pull_policy: "IfNotPresent"
 frontend_pull_policy: "IfNotPresent"
+
+# for testing only
+crawler_extra_cpu_per_browser: 300m
+
+crawler_extra_memory_per_browser: 256Mi