fix missing method

Author: Kade-N

.github/workflows/build.yml

@@ -152,8 +152,10 @@ jobs:
           CF_ZONE_ID: ${{ secrets.CF_ZONE_ID }}
           CF_PURGECACHE_TOKEN: ${{ secrets.CF_PURGECACHE_TOKEN }}
         run: |
-          Invoke-WebRequest @{
+          $params = @{
+            Method  = 'POST'
             Uri     = "https://api.cloudflare.com/client/v4/zones/$env:CF_ZONE_ID/purge_cache"
             Headers = @{Authorization="Bearer $env:CF_PURGECACHE_TOKEN"}
             Body    = '{"hosts":["update.launcherkit.sporecommunity.com"]}'
-          }
+          }
+          Invoke-WebRequest @params