[confcom] filter genpolicy releases

* When downloading a genpolicy releases, filter the list of releases to only include those that
are not marked as "prerelease" or "draft"

Signed-off-by: Saul Paredes <saulparedes@microsoft.com>

Author: Redent0r

src/confcom/azext_confcom/kata_proxy.py

@@ -40,7 +40,8 @@ def download_binaries():
         needed_assets = ["genpolicy", "genpolicy.exe"]
         # search for genpolicy in the assets from kata-container releases
         for release in r.json():
-            if "genpolicy" in release.get("tag_name"):
+            is_target = "genpolicy" in release.get("tag_name") and release.get("draft") == False and release.get("prerelease") == False
+            if is_target:
                 # these should be newest to oldest
                 for asset in release["assets"]:
                     # download the file if it contains genpolicy