docs: Replace "global policy" with "system policy" in Binary Authorization documentation#45

gcf-merge-on-green[bot] merged 2 commits into

mastergoogleapis/java-binary-authorization:masterfrom

owl-bot-d1b56b94-1530-4d0d-9ea4-ca35563ad983googleapis/java-binary-authorization:owl-bot-d1b56b94-1530-4d0d-9ea4-ca35563ad983Copy head branch name to clipboard