[common-go] Support rate limiting by enum key

[WVerlaek]

Description

Support gRPC rate limiting on keys that are enums

Related Issue(s)

Allows us to rate limit by workspace type here https://github.com/gitpod-io/ops/issues/6831

How to test

Tested in a preview env, by configuring a rate limit on ws-manager-mk2's SetTimeout endpoint, key-ed on the type enum field:

"/wsman.WorkspaceManager/SetTimeout": {
  "block": true,
  "bucketSize": 1,
  "refillInterval": "30s",
  "key": "type",
  "keyCacheSize": 10
}

Release Notes

NONE

Documentation

Build Options:

• /werft with-werft
  Run the build with werft instead of GHA
• leeway-no-cache
• /werft no-test
  Run Leeway with --dont-test

Publish Options

• /werft publish-to-npm
• /werft publish-to-jb-marketplace

Installer Options

• with-ee-license
• with-dedicated-emulation
• with-ws-manager-mk2
• workspace-feature-flags
  Add desired feature flags to the end of the line above, space separated

Preview Environment Options:

• /werft with-local-preview
  If enabled this will build install/preview
• /werft with-preview
• /werft with-large-vm
• /werft with-gce-vm
  If enabled this will create the environment on GCE infra
• /werft with-integration-tests=all
  Valid options are all, workspace, webapp, ide, jetbrains, vscode, ssh

[easyCZ]

legit

[easyCZ]

👍