Fix rpc get_events endpoint

[THenry14]

Usage related changes

Fixed some problems with rpc get_events:

• from_block and to_block are now accepted as block_hashes
• fixed from_block and to_block format in payload, so it now reflects the rpc spec
• fixed problems with response schema validation

There is still a probllem with (in my opinion) a bug in rpc schema regarding Felts (they are in "^0x0[a-fA-F0-9]{1,63}$" format, that is different to gateway), that's why I had to wrap test data with rpc_felt. From what I know, the discussion is already opened with starkware cairo team to resolve this.

Checklist:

• Applied formatting - ./scripts/format.sh
• No linter errors - ./scripts/lint.sh
• Performed code self-review
• Rebased to the last commit of the target branch (or merged it into my branch)
• Documented the changes
• Linked the issues which this PR resolves
• Updated the tests
• All tests are passing - ./scripts/test.sh

[FabijanC]

@THenry14 Thanks for the PR! As you can see, the testing workflows have failed. I will probably review the PR next week after you have fixed this.

[THenry14]

@THenry14 Thanks for the PR! As you can see, the testing workflows have failed. I will probably review the PR next week after you have fixed this.

Oh, I'm sorry for that - I have run the linter, but then rebased and missed one unused import. I have addressed that in the newest commit, the tests should pass now 👍

edit: I can see they failed on "Check out previous test metadata" step, not sure what it does and if it's connected to the code at all

[FabijanC]

@THenry14

I can see they failed on "Check out previous test metadata" step, not sure what it does and if it's connected to the code at all

Thanks for fixing the linter issue. What we have now is most likely a CircleCI issue, I will check it out.

[FabijanC]

The CircleCI issue doesn't seem to be resolvable from my end. The downloading of previous test results (for splitting between workers) doesn't seem to be executed (file not present in a later check step). I tried writing a report on CircleCI's discussion forum only to get my post marked as spam for providing too many links 🤣 .

Anyway, thank you for raising the quality of Devnet's code, just left some minor comments.