Add new actions: build and test with 3 different versions of openssl

.github/workflows/openssl-versions.yml

@@ -0,0 +1,84 @@
+name: OpenSSL compatibility
+
+on:
+  push:
+    branches: [ $default-branch ]
+  pull_request:
+    types: [ opened, reopened, synchronize ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu:22.04
+
+    steps:
+    - name: Install dependencies (OpenSSL-3.0.2)
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y \
+            libevent-dev \
+            libssl-dev \
+            libpq-dev libmariadb-dev libsqlite3-dev \
+            libhiredis-dev \
+            libmongoc-dev \
+            libmicrohttpd-dev
+    - uses: actions/checkout@v3
+    - name: configure
+      run: ./configure
+    - name: make
+      run: make
+    - name: make check
+      run: make check
+    - name: apps tests
+      run: cd examples && ./run_tests.sh
+
+
+  build:
+
+    runs-on: ubuntu:20.04 (OpenSSL-1.1.1)
+
+    steps:
+    - name: Install dependencies
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y \
+            libevent-dev \
+            libssl-dev \
+            libpq-dev libmariadb-dev libsqlite3-dev \
+            libhiredis-dev \
+            libmongoc-dev \
+            libmicrohttpd-dev
+    - uses: actions/checkout@v3
+    - name: configure
+      run: ./configure
+    - name: make
+      run: make
+    - name: make check
+      run: make check
+    - name: apps tests
+      run: cd examples && ./run_tests.sh
+
+  build:
+
+    runs-on: ubuntu:16.04 (OpenSSL-1.0.2)
+
+    steps:
+    - name: Install dependencies
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y \
+            libevent-dev \
+            libssl-dev \
+            libpq-dev libmariadb-dev libsqlite3-dev \
+            libhiredis-dev \
+            libmongoc-dev \
+            libmicrohttpd-dev
+    - uses: actions/checkout@v3
+    - name: configure
+      run: ./configure
+    - name: make
+      run: make
+    - name: make check
+      run: make check
+    - name: apps tests
+      run: cd examples && ./run_tests.sh