fix(testnet): EVM ChainID to use PARA ID

[al3mart]

Solved #572 by using the Para Id as the EVM chain id configured for pallet_revive in the testnet runtime.
That way we avoid overlapping with the mainnet configured ID.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.47%. Comparing base (e356fb4) to head (1db8d23).

@@           Coverage Diff           @@
##             main     #578   +/-   ##
=======================================
  Coverage   63.47%   63.47%           
=======================================
  Files         121      121           
  Lines       23838    23838           
  Branches    23838    23838           
=======================================
  Hits        15130    15130           
  Misses       7664     7664           
  Partials     1044     1044           

Files with missing lines	Coverage Δ
runtime/testnet/src/config/contracts.rs	66.66% <ø> (ø)

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