fix: add ChainNotify as WS API in FileCoin spec

[oren-lava]

Description

Closes: #XXXX

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Author Checklist

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• read the contribution guide
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[github-actions]

Test Results

2 392 tests   - 125   2 390 ✅  - 126   24m 45s ⏱️ -51s
  121 suites  -   2       1 💤 ±  0 
    6 files    -   1       1 ❌ +  1 

For more details on these failures, see this check.

Results for commit 99f8671. ± Comparison against base commit e06adcc.

This pull request removes 125 tests.

github.com/lavanet/lava/v5/ecosystem/cache ‑ TestCacheExpirationMultiplier
github.com/lavanet/lava/v5/ecosystem/cache ‑ TestCacheExpirationMultiplier/Multiplier_of_1
github.com/lavanet/lava/v5/ecosystem/cache ‑ TestCacheExpirationMultiplier/Multiplier_of_1.2
github.com/lavanet/lava/v5/ecosystem/cache ‑ TestCacheExpirationMultiplier/Multiplier_of_2
github.com/lavanet/lava/v5/ecosystem/cache ‑ TestCacheExpirationMultiplier/Multiplier_of_2.5
github.com/lavanet/lava/v5/ecosystem/cache ‑ TestCacheExpirationMultiplier/Multiplier_of_200
github.com/lavanet/lava/v5/ecosystem/cache ‑ TestCacheFailSetWithInvalidRequestBlock
github.com/lavanet/lava/v5/ecosystem/cache ‑ TestCacheFailSetWithInvalidRequestBlock/Finalized_After_delay_No_Hash
github.com/lavanet/lava/v5/ecosystem/cache ‑ TestCacheFailSetWithInvalidRequestBlock/Finalized_After_delay_No_Hash#01
github.com/lavanet/lava/v5/ecosystem/cache ‑ TestCacheFailSetWithInvalidRequestBlock/Finalized_After_delay_With_Hash
…

♻️ This comment has been updated with latest results.