fix(deps): update dependency a2a-sdk to v1

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
a2a-sdk (changelog)	>=0.3.10,<1.0.0 → >=1.0.3,<1.1.0

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Release Notes

a2aproject/a2a-python (a2a-sdk)

v1.0.3

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Features

• helpers: add non-text Part extractors and artifact update events (745d998)

Bug Fixes

• deps: cap protobuf below 7 (#​1019) (7af6050)
• errors: align error mappings with A2A spec (#​1055) (4e01a91)
• errors: emit JSON-RPC error.data as typed-details array per A2A 1.0 spec hot-fix (#​1058) (3ce65c5)
• Improve task_push_notification_config presence check. (#​1047) (94ad594)

Documentation

• high level active task architecture documentation (#​1056) (09a2221)

v1.0.2

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Features

• helpers: add non-text Part, Message, and Artifact helpers (#​1004) (cfdbe4c)

Bug Fixes

• proto: use field.label instead of is_repeated for protobuf compatibility (#​1010) (7d197db)
• server: deliver push notifications across all owners (#​1016) (c24ae05)

v1.0.1

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Bug Fixes

• compat: avoid unconditional grpc import in v0.3 context builders (#​1006) (6b46ceb)

v1.0.0

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See the v0.3 → v1.0 migration guide and changelog entries for alpha versions below.

⚠ BREAKING CHANGES

• remove Vertex AI Task Store integration (#​999)

Bug Fixes

• rely on agent executor implementation for stream termination (#​988) (d77cd68)

Documentation

• add comprehensive v0.3 to v1.0 migration guide (#​987) (10dea8b)

Miscellaneous Chores

• release 1.0.0 (530ec37)
• remove Vertex AI Task Store integration (#​999) (7fce2ad)

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