private static int safeParseNum(String[] versionParts, int i) {
		if (i < versionParts.length) {
			String num = versionParts[i];
			try {
				return Integer.parseUnsignedInt(num);
			} catch (NumberFormatException ex) {
				return -1;
			}
		}
		return 0;
	}
Checks if we're running the latest version of JBang by comparing its version
against the latest version on GitHub.
src/main/java/dev/jbang/util/VersionChecker.java