Runtime: Use --with-min-erlang to bypass Erlang 25 soft requirement

.github/workflows/runtime.yml

@@ -46,11 +46,6 @@ jobs:
 
     - uses: actions/checkout@v4
 
-    - name: Temporarily reenable compilation with Erlang/OTP 20
-      if: matrix.otp < 25
-      run: |
-        sed -i "s|13.0 |9.0.5 |g" configure.ac
-
     - name: Get old compatible Rebar binaries
       if: matrix.otp < 24
       run: |
@@ -94,6 +89,7 @@ jobs:
         ./autogen.sh
         ./configure --with-rebar=./${{ matrix.rebar }} \
                     --prefix=/tmp/ejabberd \
+                    --with-min-erlang=9.0.5 \
                     --enable-all \
                     --disable-elixir \
                     --disable-tools \