fix: remove duplicate imports in component/notify test file causing build failure

[Copilot]

component/notify/componet_notify_test.go had two duplicate imports left over from the v4→v5 module path migration, causing the package to fail to compile:

• . "github.com/tevid/gohamcrest" imported twice → all exported symbols (Assert, Equal, BaseMatcher, etc.) redeclared in block
• github.com/apolloconfig/agollo/v5/cluster/roundrobin imported twice (once named, once as _)

Changes

• component/notify/componet_notify_test.go: deduplicate the import block — remove the second . "github.com/tevid/gohamcrest" and the redundant blank _ roundrobin import

Original prompt

用develop发布v5.0.0版本，需要创建release分支和release内容，你需要自己加进去

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[mergify]

感谢您提出Pull Request，我会尽快Review。我会在1-2日内进行查看或者回复，如果遇到节假日可能会处理较慢，敬请谅解。

[mergify]

这个 PR 发生了冲突. @Copilot 是否能帮忙修复呢? 🙏

[Copilot]

Pull request overview

This PR promotes the repository to a new major Go module version (v5) by updating the module path and rewriting internal import paths accordingly, along with updating documentation and adding a changelog for the v5.0.0 release.

Changes:

• Update go.mod module path to github.com/apolloconfig/agollo/v5
• Rewrite internal Go imports from /v4 to /v5 across the codebase
• Update README installation/usage snippets and add a CHANGELOG.md for v5.0.0

Reviewed changes

Copilot reviewed 59 out of 59 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
go.mod	Bumps module path to /v5 (major version module convention).
client.go	Updates internal imports to /v5.
client_test.go	Updates internal imports to /v5 (note: redundant duplicate blank import flagged).
start.go	Updates internal imports to /v5.
start_test.go	Updates internal imports to /v5.
mock_server_test.go	Updates internal imports to /v5.
agcache/memory/memory.go	Updates internal imports to /v5.
agcache/memory/memory_test.go	Updates internal imports to /v5.
cluster/load_balance.go	Updates internal imports to /v5.
cluster/roundrobin/round_robin.go	Updates internal imports to /v5.
cluster/roundrobin/round_robin_test.go	Updates internal imports to /v5.
component/common.go	Updates internal imports to /v5.
component/common_test.go	Updates internal imports to /v5.
component/notify/componet_notify.go	Updates internal imports to /v5.
component/notify/change_event_test.go	Updates internal imports to /v5 (note: redundant blank imports flagged).
component/remote/abs.go	Updates internal imports to /v5.
component/remote/async.go	Updates internal imports to /v5.
component/remote/async_test.go	Updates internal imports to /v5.
component/remote/remote.go	Updates internal imports to /v5.
component/remote/sync.go	Updates internal imports to /v5.
component/remote/sync_test.go	Updates internal imports to /v5.
component/serverlist/sync.go	Updates internal imports to /v5.
component/serverlist/sync_test.go	Updates internal imports to /v5.
env/app_config.go	Updates internal imports to /v5.
env/app_config_test.go	Updates internal imports to /v5.
env/config/apollo_config.go	Updates internal imports to /v5.
env/config/apollo_config_test.go	Updates internal imports to /v5.
env/config/config.go	Updates internal imports to /v5.
env/config/config_test.go	Updates internal imports to /v5.
env/config/json/json_config.go	Updates internal imports to /v5.
env/config/json/json_config_test.go	Updates internal imports to /v5.
env/file/file_handler.go	Updates internal imports to /v5.
env/file/json/json.go	Updates internal imports to /v5.
env/file/json/json_test.go	Updates internal imports to /v5.
env/file/json/raw.go	Updates internal imports to /v5.
env/file/json/raw_test.go	Updates internal imports to /v5.
env/server/server.go	Updates internal imports to /v5.
env/server/server_test.go	Updates internal imports to /v5.
extension/cache.go	Updates internal imports to /v5.
extension/cache_test.go	Updates internal imports to /v5.
extension/file.go	Updates internal imports to /v5.
extension/file_test.go	Updates internal imports to /v5.
extension/format_parser.go	Updates internal imports to /v5.
extension/format_parser_test.go	Updates internal imports to /v5.
extension/load_balance.go	Updates internal imports to /v5.
extension/load_balance_test.go	Updates internal imports to /v5.
extension/sign.go	Updates internal imports to /v5.
protocol/http/request.go	Updates internal imports to /v5.
protocol/http/request_test.go	Updates internal imports to /v5.
storage/event_dispatch.go	Updates internal imports to /v5.
storage/repository.go	Updates internal imports to /v5.
storage/repository_test.go	Updates internal imports to /v5 (note: redundant blank import flagged).
utils/parse/yaml/parser.go	Updates internal imports to /v5.
utils/parse/yaml/parser_test.go	Updates internal imports to /v5.
utils/parse/yml/parser.go	Updates internal imports to /v5.
utils/parse/yml/parser_test.go	Updates internal imports to /v5.
README.md	Updates install/import examples to /v5.
README_CN.md	Updates install/import examples to /v5.
CHANGELOG.md	Adds v5.0.0 changelog entry and migration guidance.

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