workflows: zephyr: Install gperf on windows

Installation of gperf (perfect hash function generator) for firmware
compilation in Windows environment.

Closes #10427

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

Author: tmleman

.github/workflows/zephyr.yml

@@ -374,6 +374,12 @@ jobs:
           choco install ninja
           ninja.exe --version
 
+      # Install GPERF for Windows
+      - name: Install gperf
+        run: |
+          winget install oss-winget.gperf --accept-package-agreements
+          gperf --version
+
       # MSYS2 provides gcc x64_86 toolchain & openssl
       # Installs in D:/a/_temp/msys64
       #