Update pr_validation.yml

Author: ccassise

.github/workflows/pr_validation.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: macos-latest
 
     strategy:
-      fail-fast: false
+      fail-fast: true
 
       matrix:
         build_type: [Release, Debug]
@@ -30,7 +30,6 @@ jobs:
 
     - name: Install vcpkg 
       run: |
-        cd ${{ github.workspace }}
         git clone https://github.com/microsoft/vcpkg.git
         /bin/sh -c ./vcpkg/bootstrap-vcpkg.sh
 
@@ -58,7 +57,7 @@ jobs:
     runs-on: ubuntu-latest
 
     strategy:
-      fail-fast: false
+      fail-fast: true
 
       matrix:
         build_type: [Release, Debug]
@@ -79,7 +78,6 @@ jobs:
 
     - name: Install vcpkg 
       run: |
-        cd ${{ github.workspace }}
         git clone https://github.com/microsoft/vcpkg.git
         /bin/sh -c ./vcpkg/bootstrap-vcpkg.sh
 
@@ -107,7 +105,7 @@ jobs:
     runs-on: windows-latest
 
     strategy:
-      fail-fast: false
+      fail-fast: true
 
       matrix:
         build_type: [Release, Debug]
@@ -125,9 +123,8 @@ jobs:
     - name: Install vcpkg 
       shell: pwsh
       run: |
-        cd ${{ github.workspace }}
         git clone https://github.com/microsoft/vcpkg.git
-        Start-Process -FilePath ./vcpkg/bootstrap-vcpkg.bat
+        cmd.exe \c '.\vcpkg\bootstrap-vcpkg.bat'
 
     - name: Configure CMake
       run: >