[Bugfix] rename command to run all of the scalability tests from "scaling" to "scalability" about testsuite HOT 6 CLOSED

Acceptance Criteria for peer review:

Common steps

• Find or create a K8s cluster to use
  - [ ] Steps for creating will be in another ticket
  - [ ] Talk with team for access to an existing cluster
• Set the KUBECONFIG environment variable for accessing the target K8s cluster
• Pull down latest version of CNF conformance test code from develop branch
• Run shard install
• Run the cleanup task
• Run the setup task

Run the scalability task (on the sample coredns cnf):

crystal src/cnf-conformance.cr scalability

• You should see that the replicas increase and decrease (text in green)

PASSED: Replicas increased to 3
PASSED: Replicas decreased to 1

check the USAGE documentation

• You should see that usage code says crystal src/cnf-conformance.cr scalability

from testsuite.

@wavell @lixuna the USAGE document still says scaling

crystal src/cnf-conformance.cr scaling

https://github.com/cncf/cnf-conformance/blob/master/USAGE.md

from testsuite.

It looks like USAGE is fixed in lfn-cnti/certification#76

from testsuite.

@wavell I'm bumping spec from the rename. I'll check it out when I have spec testing running

from testsuite.

Run the conformance automated tests:

crystal spec

• You should see all tests passing

Finished in 2:11 minutes
2 examples, 0 failures, 0 errors, 0 pending

from testsuite.

USAGE.md has been updated after merging PR #76

check the USAGE documentation

• You should see that usage code says crystal src/cnf-conformance.cr scalability

Scalability Tests
✔️ To run all of the scalability tests
crystal src/cnf-conformance.cr scalability

from testsuite.