Upgrade to openpgpjs 6.2.0

[sosnovsky]

Updating to openpgpjs 6.2.0 causes a lot of errors during build (https://flowcrypt.semaphoreci.com/jobs/4e7b3d78-c065-4cbf-9321-b44a71dafe0d):

/home/semaphore/git/flowcrypt-browser/extension/js/common/core/crypto/pgp/openpgp-key.ts (120,71): Namespace '"/home/semaphore/git/flowcrypt-browser/node_modules/openpgp/openpgp"' has no exported member 'Data'. 00:28
/home/semaphore/git/flowcrypt-browser/extension/js/common/core/crypto/pgp/openpgp-key.ts (480,70): '"/home/semaphore/git/flowcrypt-browser/node_modules/openpgp/openpgp"' has no exported member named 'BasePublicKeyPacket'. Did you mean 'PublicKeyPacket'? 00:28
/home/semaphore/git/flowcrypt-browser/extension/js/common/core/crypto/pgp/openpgp-key.ts (514,93): Argument of type 'Uint8Array<ArrayBufferLike> | WebStream<Uint8Array<ArrayBufferLike>>' is not assignable to parameter of type 'Uint8Array<ArrayBufferLike>'. 00:28
  Type 'ReadableStream<Uint8Array<ArrayBufferLike>>' is missing the following properties from type 'Uint8Array<ArrayBufferLike>': BYTES_PER_ELEMENT, buffer, byteLength, byteOffset, and 26 more.
...

[ioanatflowcrypt]

Let me check