public CookieBuilder sameSite(String sameSite) {
        this.sameSite = validateAttributeValue(sameSite, "sameSite");
        return this;
    }
Sets the <a href="https://datatracker.ietf.org/doc/html/draft-ietf-httpbis-rfc6265bis-07#section-4.1.2.7"
>{@code SameSite}</a> attribute of the {@link Cookie}. The value is supposed to be one of {@code "Lax"},
{@code "Strict"} or {@code "None"}. Note that this attribute is server-side only.
core/src/main/java/com/linecorp/armeria/common/CookieBuilder.java