message: Update Appveyor to use Ubuntu 18.04 image and builds
diff: -# Copyright (c) 2018-2021, Intel Corporation
  +# Copyright (c) 2018-2022, Intel Corporation
  # All rights reserved.
  #
  # Redistribution and use in source and binary forms, with or without
  @@ -35,7 +35,7 @@ environment:
  LLVM_LATEST: 13.0
  DOCKER_PATH: "ispc/test_repo"
  matrix:
  - - APPVEYOR_BUILD_WORKER_IMAGE: Ubuntu1604
  + - APPVEYOR_BUILD_WORKER_IMAGE: Ubuntu1804
  LLVM_VERSION: latest
  - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
  LLVM_VERSION: latest
  @@ -103,14 +103,14 @@ for:
  -
  matrix:
  only:
  - - APPVEYOR_BUILD_WORKER_IMAGE: Ubuntu1604
  + - APPVEYOR_BUILD_WORKER_IMAGE: Ubuntu1804
  init:
  - sh: |-
  export ISPC_HOME=$APPVEYOR_BUILD_FOLDER
  export LLVM_HOME=$APPVEYOR_BUILD_FOLDER/llvm
  export CROSS_TOOLS=/usr/local/src/cross
  export WASM=OFF
  - export LLVM_TAR=llvm-13.0.0-ubuntu16.04-Release+Asserts-x86.arm.wasm.tar.xz
  + export LLVM_TAR=llvm-13.0.0-ubuntu18.04-Release+Asserts-x86.arm.wasm.tar.xz
  install:
  - sh: |-
  sudo apt-get update
  