✅ Added tests for starknet_getEvents

[Trantorian1]

👍 Test include the following:

• invalid block number test
• invalid event filter keys test
• invalid event filter range test
• valid call with no event key
• valid call with single event key
• valid call with multiple event keys

👎 Test do not include:

• continuation token test (valid or invalid)
• event data filtering test (valid or invalid)

Due to the high number of RPC calls included, tests had to be highly parallelized. While this has significantly reduced execution time, it still remains noticeable: this is normal.

⚠️ Also note that the high number of RPC calls might have you rate limited unless you are using a personal node for testing