(maint) - remove extra parenthesis

Author: jordanbreen28

.github/workflows/ci.yml

@@ -23,7 +23,7 @@ jobs:
       - name: "Checkout"
         uses: "actions/checkout@v3"
         with:
-          ref: ${{ github.event.pull_request.head.sha }}}
+          ref: ${{ github.event.pull_request.head.sha }}
 
       - name: "Setup ruby"
         uses: "ruby/setup-ruby@v1"
@@ -53,7 +53,7 @@ jobs:
       - name: "Checkout"
         uses: "actions/checkout@v3"
         with:
-          ref: ${{ github.event.pull_request.head.sha }}}
+          ref: ${{ github.event.pull_request.head.sha }}
 
       - name: "Setup ruby"
         uses: "ruby/setup-ruby@v1"