feat: using IPFS CID instead of hex blake2 hashes

[simonas-notcat]

What issue is this PR fixing

This PR is changing hashing algorithm from blake2 to the one that is being used by IPFS

What is being changed

@veramo/utils computeEntryHash now uses another hash algorithm. It is mainly used for computing a unique hash for VerifiableCredentials when storing them in the DB

Quality

Check all that apply:

• [X] I want these changes to be integrated
• [X] I successfully ran pnpm i, pnpm build, pnpm test, pnpm test:browser locally.
• [X] I allow my PR to be updated by the reviewers (to speed up the review process).
• [ ] I added unit tests.
• [ ] I added integration tests.
• [ ] I did not add automated tests because _____, and I am aware that a PR without tests will likely get rejected.

[codecov[bot]]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (fcd2699) 84.92% compared to head (42c255c) 84.93%. Report is 2 commits behind head on next.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## next #1239 +/- ## ======================================= Coverage 84.92% 84.93% ======================================= Files 167 167 Lines 18120 18132 +12 Branches 2036 2036 ======================================= + Hits 15388 15400 +12 Misses 2732 2732 ``` | [Files Changed](https://app.codecov.io/gh/uport-project/veramo/pull/1239?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=uport-project) | Coverage Δ | | |---|---|---| | [packages/utils/src/credential-utils.ts](https://app.codecov.io/gh/uport-project/veramo/pull/1239?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=uport-project#diff-cGFja2FnZXMvdXRpbHMvc3JjL2NyZWRlbnRpYWwtdXRpbHMudHM=) | `100.00% <100.00%> (ø)` | |

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