ci: declaratively setup labels using lannonbr/issue-label-manager-action

.github/labels.json

@@ -0,0 +1,52 @@
+[
+  {
+    "name": "bug",
+    "color": "d73a4a",
+    "description": "Something isn't working"
+  },
+  {
+    "name": "dependencies",
+    "color": "d73a4a",
+    "description": "Pull requests that update a dependency file"
+  },
+  {
+    "name": "documentation",
+    "color": "d73a4a",
+    "description": "Improvements or additions to documentation"
+  },
+  {
+    "name": "duplicate",
+    "color": "cfd3d7",
+    "description": "This issue or pull request already exists"
+  },
+  {
+    "name": "enhancement",
+    "color": "a2eeef",
+    "description": "New feature or request"
+  },
+  {
+    "name": "good first issue",
+    "color": "7057ff",
+    "description": "Good for newcomers"
+  },
+  {
+    "name": "help wanted",
+    "color": "008672",
+    "description": "Needs help from the community / Extra attention is needed"
+  },
+  {
+    "name": "invalid",
+    "color": "e4e669",
+    "description": "Not resolvable in any way / This doesn't seem right"
+  },
+  {
+    "name": "question",
+    "color": "d876e3",
+    "description": "Contains a question that needs to be answered / Further information is requested."
+  },
+  {
+    "name": "wontfix",
+    "color": "ffffff",
+    "description": "This will not be worked on"
+  }
+]

.github/workflows/issue-label-manager.yml

@@ -0,0 +1,17 @@
+---
+"on":
+  issues:
+
+name: Ensure declared labels are created
+
+jobs:
+  labels:
+    name: Invoke issue-label-manager action
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@1.0.0
+      - uses: lannonbr/issue-label-manager-action@3.0.0
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          delete: true # will delete any labels that aren't in the .github/labels.json (this is set to false by default)