fix(deps): update module golang.org/x/sync to v0.19.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
golang.org/x/sync	v0.15.0 → v0.19.0
golang.org/x/sync	v0.17.0 → v0.19.0

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[renovate]

⚠️ Artifact update problem

Renovate failed to update artifacts related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
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The artifact failure details are included below:

File name: configuration/go.sum

Command failed: go get -t ./...
go: dagger/configuration imports
	dagger/configuration/internal/dagger: package dagger/configuration/internal/dagger is not in std (/opt/containerbase/tools/golang/1.25.3/src/dagger/configuration/internal/dagger)

File name: crossplane-configuration/go.sum

Command failed: go get -t ./...
go: dagger/crossplane-configuration imports
	dagger/crossplane-configuration/internal/dagger: package dagger/crossplane-configuration/internal/dagger is not in std (/opt/containerbase/tools/golang/1.25.5/src/dagger/crossplane-configuration/internal/dagger)

File name: go-microservice/go.sum

Command failed: go get -t ./...
go: dagger/go-microservice imports
	dagger/go-microservice/internal/dagger: package dagger/go-microservice/internal/dagger is not in std (/opt/containerbase/tools/golang/1.24.4/src/dagger/go-microservice/internal/dagger)

File name: kubernetes-microservice/go.sum

Command failed: go get -t ./...
go: dagger/kubernetes-microservice imports
	dagger/kubernetes-microservice/internal/dagger: package dagger/kubernetes-microservice/internal/dagger is not in std (/opt/containerbase/tools/golang/1.24.4/src/dagger/kubernetes-microservice/internal/dagger)

File name: repository-linting/go.sum

Command failed: go get -t ./...
go: dagger/repository-linting imports
	dagger/repository-linting/internal/dagger: package dagger/repository-linting/internal/dagger is not in std (/opt/containerbase/tools/golang/1.25.2/src/dagger/repository-linting/internal/dagger)

File name: vm/go.sum

Command failed: go get -t ./...
go: dagger/vm imports
	dagger/vm/internal/dagger: package dagger/vm/internal/dagger is not in std (/opt/containerbase/tools/golang/1.24.4/src/dagger/vm/internal/dagger)

File name: vmtemplate/go.sum

Command failed: go get -t ./...
go: dagger/vmtemplate imports
	dagger/vmtemplate/internal/dagger: package dagger/vmtemplate/internal/dagger is not in std (/opt/containerbase/tools/golang/1.24.4/src/dagger/vmtemplate/internal/dagger)