run ci on elixir 1.18

Author: lukaszsamson

.github/workflows/main.yml

@@ -39,7 +39,7 @@ jobs:
       - name: Setup Elixir
         uses: erlef/setup-beam@v1
         with:
-          elixir-version: 1.17.x
+          elixir-version: 1.18.x
           otp-version: 27.x
       - name: Resolve elixir-ls dependencies
         run: |

.github/workflows/release.yml

@@ -24,7 +24,7 @@ jobs:
       - name: Setup Elixir
         uses: erlef/setup-beam@v1
         with:
-          elixir-version: 1.17.x
+          elixir-version: 1.18.x
           otp-version: 27.x
       - run: npm ci
       - run: cd elixir-ls && mix deps.get