Add otp26 and elixir 1.15 to ci compilation matrix

Author: warmwaffles

.github/workflows/ci.yml

@@ -17,8 +17,8 @@ jobs:
     strategy:
       matrix:
         os: ["ubuntu-20.04"]
-        elixir: ["1.14"]
-        otp: ["25"]
+        elixir: ["1.15"]
+        otp: ["26"]
     steps:
       - uses: actions/checkout@v3
       - uses: erlef/setup-beam@v1
@@ -48,11 +48,15 @@ jobs:
       fail-fast: false
       matrix:
         os: ["ubuntu-20.04", "windows-2019"]
-        elixir: ["1.14", "1.13", "1.12"]
-        otp: ["25", "24", "23"]
+        elixir: ["1.15", "1.14", "1.13", "1.12"]
+        otp: ["26", "25", "24", "23"]
         exclude:
           - elixir: "1.12"
             otp: "25"
+          - elixir: "1.12"
+            otp: "26"
+          - elixir: "1.13"
+            otp: "26"
           - os: "windows-2019"
             otp: "23"
     steps: