message: Deactivate pbkdf2Sha512Subtle/pbkdf2Sha512Crypto tests when API unavailable
diff: import { fromHex, toAscii, toUtf8 } from "@cosmjs/encoding";
  -import { assert } from "@cosmjs/utils";
  import { getCryptoModule, getSubtle, pbkdf2Sha512, pbkdf2Sha512Crypto, pbkdf2Sha512Subtle } from "./pbkdf2";
  @@ -124,7 +123,7 @@ describe("pbkdf2", () => {
  describe("pbkdf2Sha512Subtle", () => {
  it("works", async () => {
  const subtle = await getSubtle();
  - assert(subtle);
  + if (!subtle) pending("Subtle is not available in this environment");
  {
  const { secret, salt, iterations, keylen, expected } = botanTest;
  @@ -143,7 +142,7 @@ describe("pbkdf2", () => {
  describe("pbkdf2Sha512Crypto", () => {
  it("works", async () => {
  const crypto = await getCryptoModule();
  - assert(crypto);
  + if (!crypto) pending("The crypto module is not available in this environment");
  {
  const { secret, salt, iterations, keylen, expected } = botanTest;
  