GHA: align all install, configure and build steps again

First step towards more unified build steps on GitHub Actions.

Closes #8873

.github/workflows/event-based.yml

@@ -1,4 +1,4 @@
-name: event-based
+name: Linux
 
 on:
   # Trigger the workflow on push or pull requests, but only for the
@@ -20,21 +20,31 @@ jobs:
       fail-fast: false
       matrix:
         build:
-        - name: event tests
-          install:
-          configure: --enable-debug --disable-shared --disable-threaded-resolver --enable-werror --with-libssh --with-openssl
+        - name: event-based
+          install: libpsl-dev libbrotli-dev libzstd-dev libssh-dev
+          configure: --enable-debug --disable-shared --disable-threaded-resolver --with-libssh --with-openssl
           tflags: -n -e '!TLS-SRP'
 
     steps:
     - run: |
-        sudo apt-get install libtool autoconf automake pkg-config stunnel4 libpsl-dev libbrotli-dev libzstd-dev libssh-dev
+        sudo apt-get update
+        sudo apt-get install libtool autoconf automake pkg-config stunnel4 ${{ matrix.build.install }}
         sudo python3 -m pip install impacket
-      name: install prereqs and impacket
+      name: 'install prereqs and impacket'
 
     - uses: actions/checkout@v3
 
-    - run: autoreconf -fi && ./configure ${{ matrix.build.configure }} && make V=1
-      name: 'configure and build'
+    - run: autoreconf -fi
+      name: 'autoreconf'
+
+    - run: ./configure --enable-warnings --enable-werror ${{ matrix.build.configure }}
+      name: 'configure'
+
+    - run: make V=1
+      name: 'make'
+
+    - run: make V=1 examples
+      name: 'make examples'
 
     - run: make V=1 test-ci
       name: 'test'