Subgraph: added SortitionModule to data sources

[Harman-singh-waraich]

1. Added sortitionModule as dataSource to subgraph
2. updated the UpdateJurorStake function to use SortitionModule as contract , since getJurorBalance is now a function in SortitionModule.
3. Updated the events and handlers, StakeSet. ,etc now handled in ./src/SortitionModule.ts
4. Tried to test locally , but local stack fails, upon calling "yarn simulate:local" in contracts directory the command fails due to "ArbitrationExampleEthFee" not existing as the contract is not in the arbitration/examples.
5. Trying to test the subgraph with "yarn test" but thats running into errors too.

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PR-Codex overview

This PR focuses on adding test cases for the SortitionModule and making updates to the JurorTokensPerCourt and SortitionModule files.

Detailed summary

• Added test cases for the SortitionModule in the sortition-module.test.ts file.
• Imported necessary dependencies in the test file.
• Created a new function createStakeSetEvent in the sortition-module-utils.ts file.
• Updated the JurorTokensPerCourt file to import the SortitionModule contract.
• Updated the updateJurorStake function in the JurorTokensPerCourt file to use the SortitionModule contract.
• Updated the handleStakeSet function in the SortitionModule file to use the SortitionModule contract.

The following files were skipped due to too many changes: subgraph/tests/sortition-module-utils.ts, subgraph/subgraph.yaml

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[codeclimate]

Code Climate has analyzed commit 0ff6046 and detected 49 issues on this pull request.

Here's the issue category breakdown:

Category	Count
Complexity	10
Duplication	13
Style	26

View more on Code Climate.

[sonarqubecloud]

Quality Gate failed

Failed conditions

0.0% Coverage on New Code (required ≥ 80%)

See analysis details on SonarCloud