gha: move the event-based test over from Zuul

Switched libssh2 to libssh

Closes #8490

.github/workflows/event-based.yml

@@ -0,0 +1,42 @@
+name: event-based
+
+on:
+  # Trigger the workflow on push or pull requests, but only for the
+  # master branch
+  push:
+    branches:
+    - master
+    - '*/ci'
+  pull_request:
+    branches:
+    - master
+
+jobs:
+  autotools:
+    name: ${{ matrix.build.name }}
+    runs-on: 'ubuntu-latest'
+    timeout-minutes: 60
+    strategy:
+      fail-fast: false
+      matrix:
+        build:
+        - name: event tests
+          install:
+          configure: --enable-debug --disable-shared --disable-threaded-resolver --enable-werror --with-libssh --with-openssl
+          tflags: -n -e '!TLS-SRP'
+
+    steps:
+    - run: |
+        sudo apt-get install libtool autoconf automake pkg-config stunnel4 python3-pip libpsl-dev libbrotli-dev libzstd-dev libssh-dev
+        sudo pip3 install impacket
+      name: install prereqs and impacket
+
+    - uses: actions/checkout@v2
+
+    - run: autoreconf -fi && ./configure ${{ matrix.build.configure }} && make V=1
+      name: 'configure and build'
+
+    - run: make V=1 test-ci
+      name: 'test'
+      env:
+        TFLAGS: "${{ matrix.build.tflags }}"