Rebar/Rebar3: Update binaries to work with Erlang/OTP 25-28 (#4354)

They are compiled from their git repositories, main branches,
using erlang:25-slim docker image.

To compile ejabberd using rebar/rebar3 and Erlang 20.0 up to 23.3,
you can download the old binaries from ejabberd 21.12, available at:
  https://github.com/processone/ejabberd/raw/21.12/rebar
  https://github.com/processone/ejabberd/raw/21.12/rebar3

To compile ejabberd using rebar/rebar3 and Erlang 24.0 up to 24.3,
you can download the old binaries from ejabberd 24.12, available at:
  https://github.com/processone/ejabberd/raw/24.12/rebar
  https://github.com/processone/ejabberd/raw/24.12/rebar3

.github/workflows/runtime.yml

@@ -51,7 +51,7 @@ jobs:
       run: |
         sed -i "s|13.0 |9.0.5 |g" configure.ac
 
-    - name: Get compatible Rebar binaries
+    - name: Get old compatible Rebar binaries
       if: matrix.otp < 24
       run: |
         rm rebar
@@ -61,6 +61,16 @@ jobs:
         chmod +x rebar
         chmod +x rebar3
 
+    - name: Get recent compatible Rebar binaries
+      if: matrix.otp > 23 && matrix.otp < 25
+      run: |
+        rm rebar
+        rm rebar3
+        wget https://github.com/processone/ejabberd/raw/24.12/rebar
+        wget https://github.com/processone/ejabberd/raw/24.12/rebar3
+        chmod +x rebar
+        chmod +x rebar3
+
     - name: Prepare libraries
       run: |
         apt-get -qq update