Add Xcode 11.5 to CI (#138)

* Add Xcode 11.5 to CI

* 11.3

* Update ci.yml

Author: stephencelis

.github/workflows/ci.yml

@@ -14,8 +14,9 @@ jobs:
     strategy:
       matrix:
         xcode:
-          - 11.3.1
-          - 11.4.1
+          - 11.3
+          - 11.4
+          - 11.5
     steps:
       - uses: actions/checkout@v2
       - name: Select Xcode ${{ matrix.xcode }}
@@ -28,8 +29,9 @@ jobs:
     strategy:
       matrix:
         xcode:
-          # - 11.3.1
-          - 11.4.1
+          # - 11.3
+          - 11.4
+          - 11.5
     steps:
       - uses: actions/checkout@v2
       - name: Select Xcode ${{ matrix.xcode }}