fix devops pipeline

Author: SSDGADsss

appveyor.yml

@@ -2,14 +2,14 @@ version: 7.0.0.{build}
 
 branches:
   only:
-  - cpp_master
+    - cpp_master
 
 environment:
   matrix:
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
       cpp11: -DMSGPACK_CXX11=ON
       msvc: '"Visual Studio 14 2015"'
-      boost_prefix: C:\Libraries\boost_1_69_0
+      boost_prefix: C:\Libraries\boost_1_86_0
       boost_subdir: lib32-msvc-14.0
 build_script:
   - ps: |
@@ -52,5 +52,5 @@ build_script:
       if ($LastExitCode -ne 0) { exit $LastExitCode }
 
 test_script:
-- set PATH=%PATH%;%APPVEYOR_BUILD_FOLDER%\zlib-1.3.1\build\Release;%APPVEYOR_BUILD_FOLDER%\build\release;%boost_prefix%\%boost_subdir%
-- ctest -VV -C Release
+  - set PATH=%PATH%;%APPVEYOR_BUILD_FOLDER%\zlib-1.3.1\build\Release;%APPVEYOR_BUILD_FOLDER%\build\release;%boost_prefix%\%boost_subdir%
+  - ctest -VV -C Release