Add elixir 1.15.5 and otp 26 to test matrix.

Author: linjunpop

.github/workflows/ci.yml

@@ -16,8 +16,16 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        otp: ["23", "24", "25"]
-        elixir: ["1.13.4", "1.14.4"]
+        otp: ["24", "25", "26"]
+        elixir: ["1.13.4", "1.14.5", "1.15.5"]
+        exclude:
+          - otp: "26"
+            elixir: "1.13.4"
+        include:
+          - otp: "23"
+            elixir: "1.13.4"
+          - otp: "23"
+            elixir: "1.14.5"
     steps:
       - name: Checkout source code
         uses: actions/checkout@v3