ci: add bunk credentials for deploy bot

Author: trezy

.circleci/config.yml

@@ -155,13 +155,27 @@ jobs:
 
       - add_ssh_keys
 
+      - run:
+          name: Setup the bot's Git credentials
+          command: >
+            git config user.email "bot@circleci.com" &&
+            git config user.name "CircleCI"
+
       - run:
           name: Create a temporary branch
           command: git checkout -b foo
 
       - run:
           name: Commit the build directory
-          command: git add out && git commit -m 'Deploy the site'
+          command: >
+            git add out &&
+            git commit -m 'Deploy the site'
+
+      - run:
+          name: Commit the build directory
+          command: >
+            git add out &&
+            git commit -m 'Deploy the site'
 
       - run:
           name: Deploy the static site