chore: upgrade ethers and did-provider-ethr for sepolia support

[strumswell]

What issue is this PR fixing

n/a

What is being changed

This PR bumps the version of ethr-did in the did-provider-ethr to add support for did:ethr:sepolia. I am also bumping ethers across the board for compatibility with the new ethr-did.

Quality

Check all that apply:

• I want these changes to be integrated
• I successfully ran pnpm i, pnpm build, pnpm test, pnpm test:browser locally.
• 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.

Details

n/a

[mirceanis]

looks good, but we should update ethers to the same version in all packages that have it:
did-provider-ion
did-provider-key
did-provider-pkh
key-manager
kms-local
utils

[strumswell]

Thanks for your feedback. Completely forgot about the other packages. Should be on the same version now across the board.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (2157e70) 85.47% compared to head (94a78b5) 85.47%.

Additional details and impacted files

@@           Coverage Diff           @@
##             next    #1306   +/-   ##
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  Coverage   85.47%   85.47%           
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  Files         170      170           
  Lines       18950    18950           
  Branches     2115     2115           
=======================================
  Hits        16197    16197           
  Misses       2753     2753           

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[mirceanis]

Looks good!