Update stellar sdk version

[fazzatti]

• Update Stellar SDK to v12.2.0
• Fix issue with unhandled case of contract authorization required via sub-invocation

[github-actions]

Package	Line Rate	Branch Rate	Health
src	100%	100%	✔
src.stellar-plus	100%	100%	✔
src.stellar-plus.account	100%	100%	✔
src.stellar-plus.account.account-handler.default	100%	88%	✔
src.stellar-plus.account.account-handler.freighter	100%	100%	✔
src.stellar-plus.account.base	100%	100%	✔
src.stellar-plus.asset	100%	100%	✔
src.stellar-plus.asset.classic	97%	94%	✔
src.stellar-plus.asset.soroban-token	91%	100%	✔
src.stellar-plus.asset.stellar-asset-contract	100%	100%	✔
src.stellar-plus.channel-accounts	94%	80%	✔
src.stellar-plus.core	100%	100%	✔
src.stellar-plus.core.contract-engine	99%	88%	✔
src.stellar-plus.core.pipelines.build-transaction	100%	100%	✔
src.stellar-plus.core.pipelines.classic-sign-requirements	100%	98%	✔
src.stellar-plus.core.pipelines.classic-transaction	94%	67%	✔
src.stellar-plus.core.pipelines.fee-bump	100%	100%	✔
src.stellar-plus.core.pipelines.sign-transaction	100%	100%	✔
src.stellar-plus.core.pipelines.simulate-transaction	96%	100%	✔
src.stellar-plus.core.pipelines.soroban-auth	96%	83%	✔
src.stellar-plus.core.pipelines.soroban-get-transaction	100%	93%	✔
src.stellar-plus.core.pipelines.soroban-transaction	96%	74%	✔
src.stellar-plus.core.pipelines.submit-transaction	100%	100%	✔
src.stellar-plus.error	95%	95%	✔
src.stellar-plus.error.helpers	67%	55%	➖
src.stellar-plus.horizon	100%	100%	✔
src.stellar-plus.network	100%	100%	✔
src.stellar-plus.rpc	100%	100%	✔
src.stellar-plus.rpc.default-handler	100%	100%	✔
src.stellar-plus.rpc.validation-cloud-handler	18%	22%	❌
src.stellar-plus.soroban.contracts.certificate-of-deposit	35%	33%	❌
src.stellar-plus.test.mocks	80%	75%	✔
src.stellar-plus.test.stellar-test-ledger	100%	100%	✔
src.stellar-plus.utils	100%	100%	✔
src.stellar-plus.utils.pipeline	100%	100%	✔
src.stellar-plus.utils.pipeline.conveyor-belts	97%	100%	✔
src.stellar-plus.utils.pipeline.multi-belt-pipeline	100%	50%	✔
src.stellar-plus.utils.pipeline.plugins	87%	100%	✔
src.stellar-plus.utils.pipeline.plugins.classic-transaction	100%	100%	✔
src.stellar-plus.utils.pipeline.plugins.classic-transaction.channel-accounts	100%	100%	✔
src.stellar-plus.utils.pipeline.plugins.generic	100%	100%	✔
src.stellar-plus.utils.pipeline.plugins.generic.debug	81%	50%	✔
src.stellar-plus.utils.pipeline.plugins.generic.inject-preprocess-parameter	50%	0%	❌
src.stellar-plus.utils.pipeline.plugins.simulate-transaction	100%	100%	✔
src.stellar-plus.utils.pipeline.plugins.simulate-transaction.auto-restore	22%	0%	❌
src.stellar-plus.utils.pipeline.plugins.simulate-transaction.extract-auth-entries-output	18%	0%	❌
src.stellar-plus.utils.pipeline.plugins.simulate-transaction.extract-invocation-output	92%	0%	✔
src.stellar-plus.utils.pipeline.plugins.simulate-transaction.extract-transaction-resources	100%	76%	✔
src.stellar-plus.utils.pipeline.plugins.soroban-get-transaction	100%	100%	✔
src.stellar-plus.utils.pipeline.plugins.soroban-get-transaction.extract-contract-id	100%	75%	✔
src.stellar-plus.utils.pipeline.plugins.soroban-get-transaction.extract-fee-charged	100%	100%	✔
src.stellar-plus.utils.pipeline.plugins.soroban-get-transaction.extract-invocation-output	100%	75%	✔
src.stellar-plus.utils.pipeline.plugins.soroban-get-transaction.extract-wasm-hash	100%	75%	✔
src.stellar-plus.utils.pipeline.plugins.soroban-transaction	100%	100%	✔
src.stellar-plus.utils.pipeline.plugins.soroban-transaction.channel-accounts	87%	83%	✔
src.stellar-plus.utils.pipeline.plugins.soroban-transaction.profiler	87%	56%	✔
src.stellar-plus.utils.pipeline.plugins.submit-transaction	100%	100%	✔
src.stellar-plus.utils.pipeline.plugins.submit-transaction.fee-bump	91%	25%	✔
src.stellar-plus.utils.profiler.profiling-handler	96%	85%	✔
src.stellar-plus.utils.regex	100%	100%	✔
src.stellar-plus.utils.unit-conversion	100%	100%	✔
src.tests.utils	82%	100%	✔
Summary	88% (1634 / 1858)	78% (716 / 917)	✔