Fix conditional syntax for kernel version check

.github/workflows/build.yml

@@ -248,7 +248,7 @@ jobs:
         uses: ./.github/actions/optimization
 
       - name: Fix WiFi and Bluetooth on Samsung 6.6 GKI devices
-        if: ${{ env.KERNEL_VERSION }} == '6.6'
+        if: ${{ env.KERNEL_VERSION == '6.6' }}
         uses: ./.github/actions/6.6-fix
 
       - name: temp fix for m55 bootloop maybe