chore: use pipelines default pipeline store path

[HumairAK]

Resolves: https://issues.redhat.com/browse/RHOAIENG-4509
for v2

Description of your changes:

Use the defaults provided via kfp for pipelines store path, also use the same log archive defaults.

For the pipelines, this setting ensure pipelines in obj store are organized under the pipelines folder in obj store, instead of the root (which would get messy).

Testing instructions

Confirm for both v1 and v2.

1. Deploy a v1 dspa, upload a pipeline, confirm this pipeline is stored in the /pipelines folder in the object store
2. you can do this by using the default minio, creating a route to minio, logging in (creds are in secrets) to the ui
3. Do the same for v2 (in a new namespace, or clean up the existing one)

Checklist

• 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

[dsp-developers]

A new image has been built to help with testing out this PR: quay.io/opendatahub/data-science-pipelines-operator:pr-603
An OCP cluster where you are logged in as cluster admin is required.

To use this image run the following:

cd $(mktemp -d)
git clone git@github.com:opendatahub-io/data-science-pipelines-operator.git
cd data-science-pipelines-operator/
git fetch origin pull/603/head
git checkout -b pullrequest 74868ebb89cc9b750d4e5e0ff07c873cb2055c85
oc new-project opendatahub
make deploy IMG="quay.io/opendatahub/data-science-pipelines-operator:pr-603"

More instructions here on how to deploy and test a Data Science Pipelines Application.

[dsp-developers]

Change to PR detected. A new PR build was completed.
A new image has been built to help with testing out this PR: quay.io/opendatahub/data-science-pipelines-operator:pr-603

[amadhusu]

Both of the pipelines got stored underneath the pipelines directory instead of root directory.

DSPv2

DSPv1

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: amadhusu
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