workflows: use winget for ninja and gperf on Windows

Replace Chocolatey with winget for installing ninja and gperf on Windows
CI builds. The choco install of gperf has been failing sporadically in
CI, causing random build failures.

Since PowerShell 7.6 GA, winget now properly refreshes the PATH
environment variable after installations, which should provide a more
stable solution.

See: microsoft/winget-cli#549

Signed-off-by: Tomasz Leman <tomasz.m.leman@intel.com>

Author: tmleman

.github/workflows/zephyr.yml

@@ -389,15 +389,17 @@ jobs:
         run: pip install -r zephyr/scripts/requirements.txt
 
       # Ninja has been coming and going, see #8250
-      - name: choco install ninja
+      # Using winget instead of choco - winget now properly refreshes PATH
+      # since PowerShell 7.6 (see https://github.com/microsoft/winget-cli/issues/549)
+      - name: Install ninja
         run: |
-          choco install ninja
+          winget install Ninja-build.Ninja --accept-source-agreements --accept-package-agreements
           ninja.exe --version
 
-      # Install GPERF for Windows
+      # Install GPERF for Windows using winget
       - name: Install gperf
         run: |
-          choco install gperf
+          winget install oss-winget.gperf --accept-source-agreements --accept-package-agreements
           gperf --version
 
       # MSYS2 provides gcc x64_86 toolchain & openssl