deps: upgrade kratos version to v2.8.0

[shenqidebaozi]

Breaking Changes

• break(metrics): refactor kratos metrics with otel metrics (refactor(metrics): replace kratos metrics with otel metrics #3256)

New Features

• feat: parsing config input and convert to match the type (feat: parsing config input and convert to match the type #3306)

Bug Fixes

• fix(contrib/registry/nacos): Abnormal blocking of the Subscribe and Next methods. (fix(contrib/registry/nacos): Abnormal blocking of the Subscribe and Next methods. #3320)
• fix(contrib/opensergo): incorrect conversion between integer types (fix(contrib/opensergo): incorrect conversion between integer types #3309)
• fix(contrib/polaris): incorrect conversion between integer types (fix(contrib/polaris): incorrect conversion between integer types #3300)
• fix: com patile both map[kratos] and map.kratos for a map type in the query parameters ([bugfix] compatile both map[kratos] and map.kratos for a map type in the quer… #3284)

Chores

• chore(middleware/metrics): if requests and seconds are nil, return directly (chore(middleware/metrics): if requests and seconds are nil, return directory #3298)

Others

• chroe: chore update (chroe: chore update #3367)
• build(deps): bump golang.org/x/net from 0.19.0 to 0.23.0 (build(deps): bump golang.org/x/net from 0.19.0 to 0.23.0 #3295)
• build(deps): bump golang.org/x/net in /contrib/registry/servicecomb (build(deps): bump golang.org/x/net from 0.17.0 to 0.23.0 in /contrib/registry/servicecomb #3285)
• build(deps): bump golang.org/x/net in /contrib/config/etcd (build(deps): bump golang.org/x/net from 0.19.0 to 0.23.0 in /contrib/config/etcd #3293)
• adds Set-Cookie method to the HTTP transport. (adds Set-Cookie method to the HTTP transport. #3353)
• build(deps): bump actions/setup-go from 5.0.0 to 5.0.1 (build(deps): bump actions/setup-go from 5.0.0 to 5.0.1 #3315)
• build(deps): bump golangci/golangci-lint-action from 5 to 6 (build(deps): bump golangci/golangci-lint-action from 5 to 6 #3340)
• The issue that the response header is not assigned a value is fixed (The issue that the response header is not assigned a value is fixed #3327)
• build(deps): bump golangci/golangci-lint-action from 4 to 5 (build(deps): bump golangci/golangci-lint-action from 4 to 5 #3305)
• faat(encoding/form): allow change the default form encoder and decoder tag name (faat(encoding/form): allow change the default encoder and decoder tag name #3328)
• build(deps): bump github.com/aliyun/aliyun-log-go-sdk (build(deps): bump github.com/aliyun/aliyun-log-go-sdk from 0.1.72 to 0.1.75 in /contrib/log/aliyun #3332)
• build(deps): bump golang.org/x/net in /contrib/polaris (build(deps): bump golang.org/x/net from 0.19.0 to 0.23.0 in /contrib/polaris #3296)
• build(deps): bump Yikun/hub-mirror-action from 1.3 to 1.4 (build(deps): bump Yikun/hub-mirror-action from 1.3 to 1.4 #3307)
• build(deps): bump google.golang.org/protobuf (build(deps): bump google.golang.org/protobuf from 1.28.0 to 1.33.0 in /cmd/protoc-gen-go-errors #3238)
• build(deps): bump github.com/aliyun/aliyun-log-go-sdk (build(deps): bump github.com/aliyun/aliyun-log-go-sdk from 0.1.67 to 0.1.72 in /contrib/log/aliyun #3270)
• build(deps): bump golang.org/x/net in /contrib/opensergo (build(deps): bump golang.org/x/net from 0.20.0 to 0.24.0 in /contrib/opensergo #3277)
• build(deps): bump golang.org/x/sync in /contrib/registry/zookeeper (build(deps): bump golang.org/x/sync from 0.6.0 to 0.7.0 in /contrib/registry/zookeeper #3274)
• dep: change library name of mergo In version 1.0.0, Mergo moves to a vanity URL: dario.cat/mergo. Can update to the latest version? #3149 (dep: change library name of mergo #3149 #3297)
• security: upgrade google.golang.org/protobuf to 1.33.0 (security: upgrade google.golang.org/protobuf to 1.33.0 #3264)

[tonybase]

LGTM

[yvvlee]

@shenqidebaozi update examples,pls