OPCT-177: pre-release v0.4.0 fixes

[mtulio]

• Fix unbound variables on the CI step when creating release v0.4: https://github.com/redhat-openshift-ecosystem/provider-certification-tool/actions/runs/5047592402/jobs/9054669579
• Reorder the container build step to make sure it will succeed before creating the release, otherwise, the workflow should fail
• copy and ship binaries with the prefix opct-* (s/openshift-provider-cert/opct/) to deprecate the cert name in future releases
• update static files crashing when processing the tool with renamed argument plugins-image (missing on OPCT-177: nit rename plugins image to reflect the real name #66 )
• add dev doc expanding the release process with more information about manual tests

[mtulio]

/assign @rvanderp3

tests running, holding until it finishes.
/hold

[mtulio]

Success execution of OPCT v0.4 on OCP 4.13.0:

$ ./opct-linux-amd64 run -w --plugins-image=openshift-tests-provider-cert:v0.4.0-beta2

 $ ./opct-linux-amd64 report opct-v0.4.0_202305221743_sonobuoy_4ea19335-24b4-4964-9942-2f54e14f8971.tar.gz
> OpenShift Provider Certification Summary <

 Kubernetes API Server version		: v1.26.3+b404935
 OpenShift Container Platform version	: 4.13.0
 - Cluster Update Progressing		: False
 - Cluster Target Version		: Cluster version is 4.13.0
						
 OCP Infrastructure:			
 - PlatformType				: None
 - Name					: opct-v040-5fdxz
 - Topology				: HighlyAvailable
 - ControlPlaneTopology			: HighlyAvailable
 - API Server URL			: https://api.opct-v040.devcluster.openshift.com:6443
 - API Server URL (internal)		: https://api-int.opct-v040.devcluster.openshift.com:6443
						
 Plugins summary by name:		  Status [Total/Passed/Failed/Skipped] (timeout)
 - 10-openshift-kube-conformance	: failed [722/695/27/0] (0)
 - 20-openshift-conformance-validated	: failed [3808/1680/54/2074] (0)
									
 Health summary:			  [A=True/P=True/D=True]	
 - Cluster Operators			: [33/0/0]
 - Node health				: 6/6  (100%)
 - Pods health				: 239/242  (98%)

> Processed Summary <

 Total tests by conformance suites:
 - kubernetes/conformance: 364 
 - openshift/conformance: 3443 

 Result Summary by conformance plugins:
 - 10-openshift-kube-conformance:
   - Status: failed
   - Total: 722
   - Passed: 695
   - Failed: 27
   - Timeout: 0
   - Skipped: 0
   - Failed (without filters) : 27
   - Failed (Filter SuiteOnly): 0
   - Failed (Filter CI Flakes): 0
   - Status After Filters     : pass
 - 20-openshift-conformance-validated:
   - Status: failed
   - Total: 3808
   - Passed: 1680
   - Failed: 54
   - Timeout: 0
   - Skipped: 2074
   - Failed (without filters) : 54
   - Failed (Filter SuiteOnly): 22
   - Failed (Filter CI Flakes): 4
   - Status After Filters     : failed

It's ready to promote to GA after this PR.
/unhold

[rvanderp3]

/lgtm
/approve

[openshift-ci]

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