Replace --bes_instance_name with --project_id (#1692)

Since we need to support old Bazel versions that don't have
`--bes_instance_name`.

A better fix could be detecting the Bazel version and apply
`--project_id` or `--bes_instance_name` respectively. But `--project_id`
has not been removed, this workaround should be legit.

Test Run: https://buildkite.com/bazel-testing/bazel-bazel/builds/8505

Fixes
https://github.com/bazelbuild/continuous-integration/pull/1689#issuecomment-1588226690.
1 file changed