User erlef instead of container

That wat the markdown action later can use the system's pwsh program

Author: badlop

.github/workflows/hexpm-release.yml

@@ -8,13 +8,17 @@ on:
 jobs:
   release:
     runs-on: ubuntu-24.04
-    container:
-      image: erlang:26
     steps:
 
       - name: Check out
         uses: actions/checkout@v4
 
+      - name: Get Erlang/OTP
+        uses: erlef/setup-beam@v1
+        with:
+          otp-version: 26
+          rebar3-version: '3.24.0'
+
       - name: Generate documentation
         run: rebar3 edoc