chore(release): bump workspace to v0.28.0

[vieiralucas]

Release v0.28.0.

New service

• RDS Data API (rds-data, new fakecloud-rds-data crate): runs real SQL on the backing Postgres/MySQL containers — typed parameters and results (including bytea/BLOB round-trips), transactions (Begin/Commit/Rollback over a held connection), BatchExecuteStatement, type fidelity (numeric/timestamp/uuid/json/decimal), conformance coverage (253 variants), and full docs/SDK-metadata sync. Now 42 services / 3,723 operations / 124,508 conformance variants.

Bug-hunt fixes (cycle 6, #2012-#2019)

rds-data hardening (UTF-8 SQL, k8s host, database param, txn reaper, typed MySQL results); DynamoDB PartiQL UPDATE param-order + nested REMOVE + non-ASCII WHERE panic; Lambda GetFunctionConcurrency/ListFunctions(ALL)/ListAliases MaxItems; IAM GetUser/UpdateRole; CloudWatch PutMetricData Values/Counts; Logs FilterLogEvents endTime; Kinesis GetRecords ChildShards; S3 delimiter pagination; CFN ASG LaunchTemplate; Step Functions ListMapRuns ARN; API Gateway GenerateClientCertificate real PEM.

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Summary by cubic

Bump workspace and SDKs to v0.28.0. This release adds the RDS Data API and ships fixes across DynamoDB, Lambda, IAM, CloudWatch/Logs, Kinesis, S3, CloudFormation, Step Functions, and API Gateway.

• New Features

  • RDS Data API (rds-data, new fakecloud-rds-data crate): run real SQL on Postgres/MySQL with typed params/results, transactions, and batch execution.

• Bug Fixes

  • Hardening across DynamoDB, Lambda, IAM, CloudWatch/Logs, Kinesis, S3, CloudFormation, Step Functions, and API Gateway.

^{Written for commit ea62b2b. Summary will update on new commits.}