Index Signer In Created Event

[nlordell]

As discussed internally with the team, we decided to index the signer field of the Created event from the passkey factory contract. This came as a follow up to event discussions from an issue raised from the Hats audit competition: https://github.com/hats-finance/Safe-0x2909fdefd24a1ced675cb1444918fa766d76bdac/issues/3

Note that this only slightly increases the deployment costs:

=== BEFORE ===
  Gas Benchmarking [@bench]
    SafeWebAuthnSignerProxy
      ⛽ deployment: 94366
      ✔ Benchmark signer deployment cost (476ms)

=== AFTER  ===
  Gas Benchmarking [@bench]
    SafeWebAuthnSignerProxy
      ⛽ deployment: 94476
      ✔ Benchmark signer deployment cost (476ms)

For reference, this is a 0.1% increase to the deployment gas costs.

[coveralls]

Pull Request Test Coverage Report for Build 9615480905

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 100.0%

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Totals
Change from base Build 9578863041:	0.0%
Covered Lines:	90
Relevant Lines:	90

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💛 - Coveralls