chore(all): update golang Docker tag to v1.21.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
golang	final	minor	1.20.3 -> 1.21.1

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[renovate]

⚠ Artifact update problem

Renovate failed to update an artifact 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
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: go.sum

Command failed: docker run --rm --name=renovate_a_sidecar --label=renovate_a_child --memory=3584m -v "/tmp/worker/b74ace/997841/repos/github/AndriyKalashnykov/graphql-golang":"/tmp/worker/b74ace/997841/repos/github/AndriyKalashnykov/graphql-golang" -v "/tmp/worker/b74ace/997841/cache":"/tmp/worker/b74ace/997841/cache" -e GOPATH -e GOPROXY -e GOSUMDB -e GOFLAGS -e CGO_ENABLED -e GIT_CONFIG_KEY_0 -e GIT_CONFIG_VALUE_0 -e GIT_CONFIG_KEY_1 -e GIT_CONFIG_VALUE_1 -e GIT_CONFIG_KEY_2 -e GIT_CONFIG_VALUE_2 -e GIT_CONFIG_COUNT -e CONTAINERBASE_CACHE_DIR -w "/tmp/worker/b74ace/997841/repos/github/AndriyKalashnykov/graphql-golang" ghcr.io/containerbase/sidecar:9.19.4 bash -l -c "install-tool golang 1.20.8 && go get -d -t ./... && go mod tidy && go mod tidy"
go: github.com/go-chi/[email protected]+incompatible: go.mod has post-v4 module path "github.com/go-chi/chi/v4" at revision v4.1.3