Adjust build_ubuntu_ssltests job to use cache for the correct OS version

Author: zware

.github/workflows/build.yml

@@ -227,13 +227,14 @@ jobs:
 
   build_ubuntu_ssltests:
     name: 'Ubuntu SSL tests with OpenSSL'
-    runs-on: ubuntu-20.04
+    runs-on: ${{ matrix.os }}
     timeout-minutes: 60
     needs: check_source
     if: needs.check_source.outputs.run_tests == 'true' && needs.check_source.outputs.run_ssl_tests == 'true'
     strategy:
       fail-fast: false
       matrix:
+        os: [ubuntu-20.04]
         openssl_ver: [1.1.1w, 3.0.15, 3.1.7, 3.2.3]
     env:
       OPENSSL_VER: ${{ matrix.openssl_ver }}
@@ -263,7 +264,7 @@ jobs:
       uses: actions/cache@v4
       with:
         path: ./multissl/openssl/${{ env.OPENSSL_VER }}
-        key: ${{ runner.os }}-multissl-openssl-${{ env.OPENSSL_VER }}
+        key: ${{ matrix.os }}-multissl-openssl-${{ env.OPENSSL_VER }}
     - name: Install OpenSSL
       if: steps.cache-openssl.outputs.cache-hit != 'true'
       run: python3 Tools/ssl/multissltests.py --steps=library --base-directory $MULTISSL_DIR --openssl $OPENSSL_VER --system Linux
@@ -320,7 +321,7 @@ jobs:
       uses: actions/cache@v4
       with:
         path: ./multissl/openssl/${{ env.OPENSSL_VER }}
-        key: ${{ runner.os }}-multissl-openssl-${{ env.OPENSSL_VER }}
+        key: ${{ matrix.os }}-multissl-openssl-${{ env.OPENSSL_VER }}
     - name: Install OpenSSL
       if: steps.cache-openssl.outputs.cache-hit != 'true'
       run: python3 Tools/ssl/multissltests.py --steps=library --base-directory $MULTISSL_DIR --openssl $OPENSSL_VER --system Linux

.github/workflows/reusable-ubuntu.yml

@@ -12,7 +12,11 @@ jobs:
   build_ubuntu_reusable:
     name: 'build and test'
     timeout-minutes: 60
-    runs-on: ubuntu-20.04
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-20.04]
     env:
       OPENSSL_VER: 3.0.15
       PYTHONSTRICTEXTENSIONBUILD: 1
@@ -32,7 +36,7 @@ jobs:
       uses: actions/cache@v4
       with:
         path: ./multissl/openssl/${{ env.OPENSSL_VER }}
-        key: ${{ runner.os }}-multissl-openssl-${{ env.OPENSSL_VER }}
+        key: ${{ matrix.os }}-multissl-openssl-${{ env.OPENSSL_VER }}
     - name: Install OpenSSL
       if: steps.cache-openssl.outputs.cache-hit != 'true'
       run: python3 Tools/ssl/multissltests.py --steps=library --base-directory $MULTISSL_DIR --openssl $OPENSSL_VER --system Linux