MAINT: Dependabot (#34)

Author: larsoner

.github/dependabot.yml

@@ -0,0 +1,10 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "monthly"
+    groups:
+      actions:
+        patterns:
+          - "*"

.github/workflows/moxunit.yml

@@ -6,10 +6,11 @@ on:
   pull_request:
     branches:
       - '*'
+  workflow_dispatch:
 
 jobs:
   test:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
       - uses: joergbrech/moxunit-action@master