Fails to report error during publib-maven

[kaizencc]

See: https://github.com/cdklabs/awscdk-asset-node-proxy-agent/actions/runs/4624066296/jobs/8230436553

Looks like publib-maven is failing with:

Error:  
Error:  Nexus Staging Rules Failure Report
Error:  ==================================
Error:  
Error:  Repository "softwareamazon-5342" failures
Error:    Rule "RepositoryWritePolicy" failures
Error:      * Artifact updating: Repository ='releases:Releases' does not allow updating artifact='/software/amazon/awscdk/cdk-asset-node-proxy-agent-v5/2.0.120/cdk-asset-node-proxy-agent-v5-2.0.120.jar'
Error:      * Artifact updating: Repository ='releases:Releases' does not allow updating artifact='/software/amazon/awscdk/cdk-asset-node-proxy-agent-v5/2.0.120/cdk-asset-node-proxy-agent-v5-2.0.120-sources.jar'
Error:      * Artifact updating: Repository ='releases:Releases' does not allow updating artifact='/software/amazon/awscdk/cdk-asset-node-proxy-agent-v5/2.0.120/cdk-asset-node-proxy-agent-v5-2.0.120-javadoc.jar'
Error:      * Artifact updating: Repository ='releases:Releases' does not allow updating artifact='/software/amazon/awscdk/cdk-asset-node-proxy-agent-v5/2.0.120/cdk-asset-node-proxy-agent-v5-2.0.120.pom'
Error:  
Error:  
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  3.651 s
[INFO] Finished at: 2023-04-19T01:04:06Z
[INFO] ------------------------------------------------------------------------
Error:  Failed to execute goal org.sonatype.plugins:nexus-staging-maven-plugin:1.6.5:release (default-cli) on project dummy: Could not perform action: there are failing staging rules!: Staging rules failure! -> [Help 1]
Error:  
Error:  To see the full stack trace of the errors, re-run Maven with the -e switch.
Error:  Re-run Maven using the -X switch to enable full debug logging.
Error:  
Error:  For more information about the errors and possible solutions, please read the following articles:
Error:  [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

But the github action eventually reports success.

The reason is here:

publib/bin/publib-maven

Lines 262 to 268 in 3a4a114

	if [ ${PIPESTATUS[0]} -ne 0 ]; then
	if cat ${release_output} | grep "does not allow updating artifact" | grep -q ".pom"; then
	echo "⚠️ Artifact already published. Skipping"
	else
	error "Release failed"
	fi
	fi

We may be overindexing on the magic string "does not allow updating artifacts" because it is not true in this case that we are trying to publish the same artifact.

[kaizencc]

Confirm that this error was a result of old maven credentials and not that the artifact was already published