Change toolset name

Author: mborland

.github/workflows/ci.yml

@@ -84,7 +84,7 @@ jobs:
         run: ./b2 headers
         working-directory: ../boost-root
       - name: Generate user config
-        run: 'echo "using intel : : ${{ matrix.compiler }} : <cxxflags>-std=${{ matrix.standard }} ;" > ~/user-config.jam'
+        run: 'echo "using intel : : icpx : <cxxflags>-std=${{ matrix.standard }} ;" > ~/user-config.jam'
         working-directory: ../boost-root
       - name: Config info install
         run: ../../../b2 config_info_travis_install toolset=$TOOLSET