Update govulncheck.yml

Signed-off-by: Ryan Parman <rparman@northwood-labs.com>

Author: skyzyx

.github/workflows/govulncheck.yml

@@ -34,6 +34,7 @@ jobs:
             github.com:443
             objects.githubusercontent.com:443
             proxy.golang.org:443
+            release-assets.githubusercontent.com:443
             sum.golang.org:443
             vuln.go.dev:443