Test mixed version with 3.13.7/OTP26

Author: mkuratczyk

.github/workflows/test-make-target.yaml

@@ -62,7 +62,7 @@ jobs:
       uses: dsaltares/fetch-gh-release-asset@master
       if: inputs.mixed_clusters
       with:
-        version: 'tags/v4.0.9'
+        version: 'tags/v3.13.7'
         regex: true
         file: "rabbitmq-server-generic-unix-\\d.+\\.tar\\.xz"
         target: ./

.github/workflows/test-make.yaml

@@ -82,12 +82,12 @@ jobs:
       fail-fast: false
       matrix:
         erlang_version:
-        - '28'
+        - '26'
         elixir_version:
         - '1.18'
         metadata_store:
           - mnesia
-          - khepri
+          #- khepri
     uses: ./.github/workflows/test-make-tests.yaml
     with:
       erlang_version: ${{ matrix.erlang_version }}