Github Action .yml files have been updated

Author: Levent KARAGÖL

.github/workflows/windows-x86_64.yml

@@ -55,15 +55,6 @@ jobs:
         run: |
           cmake --build build --config Release
 
-      - name: Check if test executable exists
-        run: |
-          if (Test-Path "./build/test/test.exe") {
-            Write-Host "Test executable exists."
-          } else {
-            Write-Host "Test executable does not exist."
-            exit 1
-          }
-
       - name: Run tests
         run: |
           & "D:\a\libcpp-http-client\libcpp-http-client\build\test\test.exe"