CI M3 Cluster Integration Tests are broken

[andrewmains12]

Steps to reproduce:

• Trigger a build off of master. You should see M3 Cluster Integration Tests failing:

Example failing build:

https://buildkite.com/uberopensource/m3-monorepo-ci-uber-oss/builds/1564#019be47a-327d-4b48-95b6-db2d7fd143ae

go test -count=1 -p 1 -tags=cluster_integration ./src/integration/...
/bin/bash: line 1: go: command not found

[justinhwang]

Go being broken is fixed by #4405, now separately tests are failing for a different reason