vendor: update grpc to v1.62.0

[tonistiigi]

Updates to the same version used in moby/moby

https://github.com/moby/moby/blob/0d91e80dbb4c75c77af5753eb9749888857eb516/vendor.mod#L113

[crazy-max]

golangci-verify is broken: https://github.com/moby/buildkit/actions/runs/10780471308/job/29897972379?pr=5313#step:5:400

#22 [golangci-verify 1/1] RUN --mount=target=/go/src/github.com/moby/buildkit   golangci-lint config verify &&   touch /golangci-verify.done
#22 0.575 Failed executing command with error: [.golangci.yml] validate: compile schema: jsonschema https://golangci-lint.run/jsonschema/golangci.v1.60.jsonschema.json compilation failed: https://golangci-lint.run/jsonschema/golangci.v1.60.jsonschema.json returned status code 404
#22 ERROR: process "/bin/sh -c golangci-lint config verify &&   touch /golangci-verify.done" did not complete successfully: exit code: 3

I get a 404 as well for https://golangci-lint.run/jsonschema/golangci.v1.60.jsonschema.json

[crazy-max]

@thompson-shaun We still have the issue with windows label 👀 #5304 (comment).