patching GHA to use Go1.20 and not Go1.2

v1.1.0

- Auto-detect chainhash in the headers of the ciphertext and attempt to
  use it along with the current network upon decryption. Adds a
  trustChainhash property to the Network and Tlock structs and a
  Strict() method to disable it, in order to avoid using chainhash
  provided in ciphertexts.
- Provide Windows, Linux and MacOS releases.
- Expose the DefaultNetwork and DefaultChain constants for use by 3rd
  party libraries.
- Upgrade dependencies.

Patch release

Mainnet (fastnet) compatible release

We have reached GA :D

update kyber to 1..1.13