Fix OTP Version for CI

Author: maennchen

.github/workflows/part_test.yml

@@ -7,28 +7,6 @@ env:
   ERL_AFLAGS: "-enable-feature all"
 
 jobs:
-  detectToolVersions:
-    name: "Detect Tool Versions"
-
-    runs-on: ubuntu-latest
-
-    outputs:
-      otpVersion: "${{ steps.toolVersions.outputs.OTP_VERSION }}"
-      elixirVersion: "${{ steps.toolVersions.outputs.ELIXIR_VERSION }}"
-
-    steps:
-      - uses: actions/checkout@v4
-      - name: "Read .tool-versions"
-        id: toolVersions
-        run: |
-          OTP_VERSION="$(cat .tool-versions | grep erlang | cut -d' ' -f2-)"
-          echo OTP: $OTP_VERSION
-          echo "OTP_VERSION=${OTP_VERSION}" >> $GITHUB_OUTPUT
-
-          ELIXIR_VERSION="$(cat .tool-versions | grep elixir | cut -d' ' -f2-)"
-          echo Rebar: $ELIXIR_VERSION
-          echo "ELIXIR_VERSION=${ELIXIR_VERSION}" >> $GITHUB_OUTPUT
-
   mix_format:
     name: mix format
 
@@ -61,31 +39,35 @@ jobs:
 
     runs-on: ubuntu-latest
 
-    needs: ["detectToolVersions"]
-
     strategy:
       fail-fast: false
       matrix:
         include:
           - elixir: "1.15.0"
+            otp: "26.2.5.6"
             unstable: false
           - elixir: "1.15.8"
+            otp: "26.2.5.6"
             unstable: false
           - elixir: "1.16.3"
+            otp: "26.2.5.6"
             unstable: false
           - elixir: "1.17.3"
+            otp: "26.2.5.6"
             unstable: false
           - elixir: "1.18.0"
+            otp: "27.2"
             unstable: false
           - elixir: "main"
+            otp: "27.2"
             unstable: true
 
     steps:
       - uses: actions/checkout@v4
       - uses: erlef/setup-beam@v1
         id: setupBEAM
         with:
-          otp-version: "${{ needs.detectToolVersions.outputs.otpVersion }}"
+          otp-version: "${{ matrix.otp }}"
           elixir-version: "${{ matrix.elixir }}"
           version-type: strict
       - uses: actions/cache@v4