Remove Optional usage

[nalepae]

No description provided.

[codecov]

Codecov Report

Merging #83 (19e68b2) into main (1dbdfdc) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##              main       #83   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           17        17           
  Lines          963       957    -6     
=========================================
- Hits           963       957    -6     

Files	Coverage Δ
eth_validator_watcher/beacon.py	100.00% <100.00%> (ø)
eth_validator_watcher/entrypoint.py	100.00% <100.00%> (ø)
eth_validator_watcher/exited_validators.py	100.00% <100.00%> (ø)
eth_validator_watcher/fee_recipient.py	100.00% <ø> (ø)
eth_validator_watcher/missed_attestations.py	100.00% <ø> (ø)
eth_validator_watcher/missed_blocks.py	100.00% <ø> (ø)
eth_validator_watcher/models.py	100.00% <100.00%> (ø)
eth_validator_watcher/slashed_validators.py	100.00% <100.00%> (ø)
eth_validator_watcher/utils.py	100.00% <ø> (ø)

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