feat: add PartialEq to StarknetApiError

[giladchase]

This will mainly help test writers, who can now assert_eq! on StarknetApiResults.

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This change is 

[MohammadNassar1]

Reviewed 2 of 2 files at r1, all commit messages.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @ArniStarkware and @giladchase)

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src/serde_utils.rs line 79 at r1 (raw file):

/// The error type returned by the inner deserialization.
// If you need `eq`, add `impl Eq fro InnerDeserializationError {}` and read warning below.

typo

Suggestion:

for

[giladchase]

Reviewable status: all files reviewed, 1 unresolved discussion

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src/serde_utils.rs line 79 at r1 (raw file):

Previously, MohammadNassar1 (mohammad-starkware) wrote…

typo

whoops sorry, was over-eager.
Fixed here: #297