CI: Install 32 bit C++ standard library when testing packages.

git-svn-id: https://svn.rinrab.com/rinrab/xdigest/trunk@6318 0083e6b4-6090-234a-836e-88fcc467669c

Author: rinrab

.github/workflows/packages.yml

@@ -12,7 +12,7 @@ jobs:
     steps:
     - uses: actions/checkout@v6
 
-    - run: sudo apt-get install gcc-multilib
+    - run: sudo apt-get install gcc-multilib libstdc++6:i386
 
     - run: make test-vcpkg VCPKG_TRIPLET=x64-linux
     - run: make test-vcpkg VCPKG_TRIPLET=x64-linux NO_ASM=1