fix(ci): auto-discover OpenSSL install path on Windows

Chocolatey's OpenSSL 3.6.2 no longer writes the registry key that CMake
depends on, so the hardcoded C:/Program Files/OpenSSL-Win64 path fails.
Search common install locations and fall back to PATH discovery.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: mkschulze

.github/workflows/juce-build.yml

@@ -138,6 +138,34 @@ jobs:
       - name: Install OpenSSL
         run: choco install openssl --no-progress -y
 
+      - name: Find OpenSSL
+        id: openssl
+        shell: pwsh
+        run: |
+          # Chocolatey/SLP installer path varies — search common locations
+          $candidates = @(
+            "C:\Program Files\OpenSSL-Win64",
+            "C:\Program Files\OpenSSL",
+            "C:\OpenSSL-Win64"
+          )
+          foreach ($dir in $candidates) {
+            if (Test-Path "$dir\include\openssl\ssl.h") {
+              Write-Host "Found OpenSSL at: $dir"
+              echo "root=$dir" >> $env:GITHUB_OUTPUT
+              exit 0
+            }
+          }
+          # Fallback: find from openssl.exe on PATH
+          $bin = Get-Command openssl -ErrorAction SilentlyContinue
+          if ($bin) {
+            $root = Split-Path (Split-Path $bin.Source)
+            Write-Host "Found OpenSSL via PATH at: $root"
+            echo "root=$root" >> $env:GITHUB_OUTPUT
+            exit 0
+          }
+          Write-Error "OpenSSL not found"
+          exit 1
+
       - name: Configure CMake
         run: |
           cmake -B build `
@@ -146,7 +174,7 @@ jobs:
             -DJAMWIDE_BUILD_JUCE=ON `
             -DJAMWIDE_BUILD_CLAP=OFF `
             -DJAMWIDE_DEV_BUILD=OFF `
-            -DOPENSSL_ROOT_DIR="C:/Program Files/OpenSSL-Win64"
+            -DOPENSSL_ROOT_DIR="${{ steps.openssl.outputs.root }}"
 
       - name: Build
         run: cmake --build build --config Release