Land 794: run rust-openssl regress in daily CI

.github/rust-openssl.patch

@@ -0,0 +1,13 @@
+diff --git a/openssl-sys/build/main.rs b/openssl-sys/build/main.rs
+index c2aceeec..26e0816a 100644
+--- a/openssl-sys/build/main.rs
++++ b/openssl-sys/build/main.rs
+@@ -280,7 +280,7 @@ See rust-openssl documentation for more information:
+             (3, 4, 0) => ('3', '4', '0'),
+             (3, 4, _) => ('3', '4', 'x'),
+             (3, 5, _) => ('3', '5', 'x'),
+-            _ => version_error(),
++            _ => ('3', '6', 'x'),
+         };
+ 
+         println!("cargo:libressl=true");

.github/workflows/regress.yml

@@ -0,0 +1,33 @@
+name: regress testing
+
+on:
+  schedule:
+  - cron: "0 0 * * *"
+
+jobs:
+  rust-openssl:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: Install apt dependencies
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y cargo
+    - name: Build LibreSSL
+      run: |
+        ./autogen.sh
+        ./configure
+        make dist
+        tar zxvf libressl-*.tar.gz
+        rm libressl-*.tar.gz
+        cd libressl-*
+        ./configure --prefix="${HOME}/opt"
+        make all install
+    - name: run rust-openssl tests
+      run: |
+        git clone https://github.com/sfackler/rust-openssl.git
+        cd rust-openssl
+        export OPENSSL_DIR=${HOME}/opt
+        export LD_LIBRARY_PATH=${HOME}/opt/lib
+        patch -p1 < ../.github/rust-openssl.patch
+        cargo test