Bump to v3.3.1

When this repo was set up, OpenSSL 3.2.x was the stable release.

Per https://www.openssl.org/source/index.html the stable release series has advanced:

> Note: The latest stable version is the 3.3 series supported until 9th April 2026. Also available is the 3.2 series supported until 23rd November 2025

.github/workflows/build.yml

@@ -25,8 +25,8 @@ jobs:
     name: Build
     runs-on: macos-14
 
-    env: # use tag version, if available, falling back to 3.2.1 (stable)
-      OPENSSL_VERSION: "${{ startsWith(github.ref, 'refs/tags/3.') && github.ref_name || '3.2.2' }}"
+    env: # use tag version, if available, falling back to 3.3.1 (stable)
+      OPENSSL_VERSION: "${{ startsWith(github.ref, 'refs/tags/3.') && github.ref_name || '3.3.1' }}"
       PUBLISH_RELEASE: "${{ startsWith(github.ref, 'refs/tags/3.') && '1' || '0' }}"
 
     steps:

scripts/build.sh

@@ -2,7 +2,7 @@
 
 set -e
 
-OPENSSL_VERSION_STABLE="3.2.2" # https://www.openssl.org/source/index.html
+OPENSSL_VERSION_STABLE="3.3.1" # https://www.openssl.org/source/index.html
 IOS_VERSION_MIN="13.4"
 MACOS_VERSION_MIN="11.0"
 CODESIGN_ID="-"