#2045: CI: switch C++ standard to 17 on CI builds by default

scripts/workflows-azure.ini

@@ -40,7 +40,7 @@ pr_pattern = "pr:\\n  drafts: false\\n  autoCancel: true\\n  branches:\\n    inc
 vt_no_color = 1
 vt_build_shared_libs = 0
 vt_inclusion = TPL
-cmake_cxx_standard = 14
+cmake_cxx_standard = 17
 
 [PR-tests-intel-oneAPI]
 test_configuration = "intel icpx, ubuntu, mpich"
@@ -141,7 +141,6 @@ compiler = gcc-12
 distro = 22.04
 output_name = ci/azure/azure-gcc-12-ubuntu-mpich.yml
 pr_pattern = "pr:\\n  drafts: true\\n  autoCancel: true\\n  branches:\\n    include:\\n      - '*'\\n"
-cmake_cxx_standard = 17
 
 [PR-tests-clang-5]
 test_configuration = "clang-5.0, ubuntu, mpich"
@@ -201,7 +200,6 @@ compiler_type = clang
 compiler = clang-13
 distro = 22.04
 output_name = ci/azure/azure-clang-13-ubuntu-mpich.yml
-cmake_cxx_standard = 17
 
 [PR-tests-clang-14]
 test_configuration = "clang-14, ubuntu, mpich"