Add Mergify config

.github/mergify.yml

@@ -0,0 +1,14 @@
+pull_request_rules:
+  - name: Automatic merge
+    conditions:
+      - "#approved-reviews-by>=1"
+      - label=automerge
+      - status-success=Lint
+      - status-success=Test Successful
+      - status-success=Docker Test Successful
+      - status-success=Windows Test Successful
+      - status-success=continuous-integration/appveyor/pr
+      - status-success=continuous-integration/travis-ci/pr
+    actions:
+      merge:
+        method: merge

.github/workflows/test-docker.yml

@@ -61,3 +61,11 @@ jobs:
       with:
         flags: GHA_Docker
         name: ${{ matrix.docker }}
+
+  success:
+    needs: build
+    runs-on: ubuntu-latest
+    name: Docker Test Successful
+    steps:
+      - name: Success
+        run: echo Docker Test Successful

.github/workflows/test-windows.yml

@@ -267,3 +267,11 @@ jobs:
           bash <(curl -s https://codecov.io/bash) -F GHA_Windows
         env:
           CODECOV_NAME: ${{ matrix.name }}
+
+  success:
+    needs: [build, msys]
+    runs-on: ubuntu-latest
+    name: Windows Test Successful
+    steps:
+      - name: Success
+        run: echo Windows Test Successful

.github/workflows/test.yml

@@ -107,3 +107,11 @@ jobs:
       run: bash <(curl -s https://codecov.io/bash) -F ${{ matrix.codecov-flag }}
       env:
         CODECOV_NAME: ${{ matrix.os }} Python ${{ matrix.python-version }}
+
+  success:
+    needs: build
+    runs-on: ubuntu-latest
+    name: Test Successful
+    steps:
+      - name: Success
+        run: echo Test Successful