fix: add workaround patch for elyra validate

[rkpattnaik780]

Patch to fix failing of elyra validation command for pipelines with default values.

Fixes #257

Description

elyra-validate cmd was failing for pipelines that contain both pipeline parameters and default properties.

How Has This Been Tested?

1. Run the image in bash.

podman run -it --rm -p 8888:8888 quay.io/opendatahub/workbench-images:jupyter-datascience-ubi8-python-3.8-pr-324 bash

2. Copy the files params.pipeline and params-test.py from here.
3. Validate pipeline using elyra-validate command.

elyra-pipeline validate params.pipeline

Merge criteria:

• The commits are squashed in a cohesive manner and have meaningful messages.
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has manually tested the changes and verified that the changes work

[rkpattnaik780]

/test notebook-codeserver-ubi9-python-3-9-pr-image-mirror

[harshad16]

/lgtm
/approve

Thanks for the work 💯

[openshift-ci]

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This pull-request has been approved by: harshad16

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