ci: update actions to elixir 1.18 (#29)

Author: hpopp

.github/workflows/ci.yml

@@ -31,7 +31,7 @@ jobs:
       - name: Set up Elixir
         uses: erlef/setup-beam@v1
         with:
-          elixir-version: "1.17.2"
+          elixir-version: "1.18.0"
           otp-version: "27.0.1"
       - name: Restore dependencies cache
         uses: actions/cache@v3
@@ -53,7 +53,7 @@ jobs:
       - name: Set up Elixir
         uses: erlef/setup-beam@v1
         with:
-          elixir-version: "1.17.2"
+          elixir-version: "1.18.0"
           otp-version: "27.0.1"
       - name: Restore dependencies cache
         uses: actions/cache@v3

.tool-versions

@@ -1,2 +1,2 @@
-elixir 1.17.2-otp-27
+elixir 1.18.0-otp-27
 erlang 27.0.1