fix(did-comm): remove isomorphic-webcrypto dependency

[mirceanis]

What issue is this PR fixing

fixes #1381 fixes #1387

What is being changed

Removed isomorphic-webcrypto dependency in favor of @noble/ciphers + @noble/hashes. This also allowed us to remove several other @stablelib/* dependencies from the @veramo/did-comm package.

I also updated the encryption tests to include the test-vectors that were previously unused.

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).
• [X] I added unit tests.
• [ ] I added integration tests.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 96.42857% with 1 line in your changes missing coverage. Please review.

Project coverage is 89.72%. Comparing base (018e189) to head (e2f8159).

Files	Patch %	Lines
...kages/did-comm/src/encryption/a256cbc-hs512-dir.ts	92.30%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## next #1401 +/- ## ========================================== - Coverage 89.73% 89.72% -0.02% ========================================== Files 177 177 Lines 26846 26810 -36 Branches 2220 2220 ========================================== - Hits 24090 24054 -36 Misses 2756 2756 ```

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