chore(workflow): add auto-assign configuration

According to kentaro-m/auto-assign-action#55 the auto-assign workflow needs a configuration file to run.

.github/auto-assign-configuration.yml

@@ -0,0 +1,6 @@
+addReviewers: true
+addAssignees: author
+reviewers:
+  - "grandeljay"
+skipKeywords:
+  - wip

.github/auto_assign.yml

@@ -1,17 +0,0 @@
-name: "Auto Assign"
-on:
-    pull_request:
-        types: [opened, ready_for_review]
-
-jobs:
-    add-reviews:
-        runs-on: ubuntu-latest
-        steps:
-            - uses: kentaro-m/auto-assign-action@v1.2.4
-              with:
-                  addReviewers: true
-                  addAssignees: author
-                  reviewers:
-                      - "grandeljay"
-                  skipKeywords:
-                      - wip

.github/workflows/auto-assign.yml

@@ -0,0 +1,12 @@
+name: "Auto Assign"
+on:
+  pull_request:
+    types: [opened, ready_for_review]
+
+jobs:
+  add-reviews:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: kentaro-m/auto-assign-action@v1.2.4
+        with:
+          configuration-path: ".github/auto-assign-configuration.yml"