Label workflow moved to external action

Author: facelessuser

tools/labels.json renamed to .github/labels.json

@@ -1,7 +1,4 @@
 {
-    "user": "facelessuser",
-    "repo": "Rummage",
-
     "colors": {
         "bug": "#c45b46",
         "feature": "#7b17d8",

.github/workflows/labels.yml

@@ -7,23 +7,13 @@ on:
 
 jobs:
   label-sync:
-    strategy:
-      max-parallel: 4
-      matrix:
-        python-version: [3.7]
 
     runs-on: ubuntu-latest
 
     steps:
     - uses: actions/checkout@v1
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v1
-      with:
-        python-version: ${{ matrix.python-version }}
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip setuptools
-        python -m pip install -r requirements/tools.txt
     - name: Sync labels
-      run: |
-        python tools/gh_labels.py -i tools/labels.json -t ${{ secrets.GH_DEPLOY_KEY }} -d
+      uses: facelessuser/label-mgr-action@master
+      with:
+        token: ${{ secrets.GH_DEPLOY_KEY }}
+        mode: 'delete'