feat: update error_details.proto to expose latest upstream fields

[MathieuTricoire]

Motivation

The upstream Google proto file error_details.proto has been updated (see: https://github.com/googleapis/googleapis/blob/2e1c38ddaa402303b9c1381f5f9ba5a9ced4a51c/google/rpc/error_details.proto):

• QuotaFailure message:
  • Added fields: api_service, quota_metric, quota_id, quota_dimensions, quota_value and future_quota_value
• BadRequest.FieldViolation message:
  • Added fields: reason and localized_message

Modifications

Update the google proto files and generates the stubs using the provided scripts dev/protos/fetch.sh and dev/protos/generate.sh.

Result

Library users can now access the newly added fields in error_details.proto.

[glbrntt]

Thanks @MathieuTricoire; unfortunately this isn't actually sufficient for you to access these fields as we provide wrappers around these types. See here. Is that something you feel like contributing?

[MathieuTricoire]

@glbrntt Ah, got it — sorry, I rushed it a bit. I’ll update the wrappers as well! 👍

[MathieuTricoire]

I've pushed the changes for the wrappers, I don't have much time today to have a deeper look and check if I'm missing something else or if my code blend in correctly, but feel free to take a first look and let me know what you think.

I've added new initializers for QuotaFailure.Violation and BadRequest.FieldViolation to avoid introducing a breaking change. Let me know if you'd prefer a different approach, like updating the default initializer with default values, going ahead with a breaking change or something else.

[glbrntt]

Thanks @MathieuTricoire. For some uninteresting reasons new API needs to be annotated with appropriate availability, I've left these as suggestions on the PR to save you from having to find them all.

Beyond that this looks good aside from one small nit re: Int/Int64

[MathieuTricoire]

@glbrntt Thanks! I've added the availability annotations and fixed the Int/Int64 issue (I should have seen this one...)
Happy to make more changes if you notice anything else, is the string representation ok?

[glbrntt]

Thanks, LGTM!

[glbrntt]

Ah, Swift 6.0 CI is unhappy with the extra ,

/grpc-swift-protobuf/Sources/GRPCProtobuf/Errors/ErrorDetails+Types.swift:282:7: error: unexpected ',' separator
280 |         subject: String,
281 |         description: String,
282 |       ) {
    |       `- error: unexpected ',' separator
283 |         self.subject = subject
284 |         self.violationDescription = description

/grpc-swift-protobuf/Sources/GRPCProtobuf/Errors/ErrorDetails+Types.swift:505:7: error: unexpected ',' separator
503 |         field: String,
504 |         description: String,
505 |       ) {
    |       `- error: unexpected ',' separator
506 |         self.field = field
507 |         self.violationDescription = description

[MathieuTricoire]

Oops sorry I'll fix that