fix(rust/cardano-chain-follower): Update mithril-client version (0.8.18 -> 0.10.4)

[stanislav-tkach]

Description

• mithril-client version was updated from 0.8.18 to 0.10.4.

Description of Changes

Currently we have broken builds in the main branch because of the mithril-common update (dependency of mithril-client).

Please confirm the following checks

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream module

[github-actions]

✅ Test Report | ${\color{lightgreen}Pass: 228/228}$ | ${\color{red}Fail: 0/228}$ |

[Mr-Leshiy]

LGTM