chore: tagRelease.sh: bump to 1.3.4 in release-1.3 branch

[nickboldt]

Signed-off-by: Nick Boldt [email protected]

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[github-actions]

⚠️ Files changed in bundle generation!

Those changes to the operator bundle manifests should have been pushed automatically to your PR branch.
You might also need to manually update the .rhdh/bundle/manifests/rhdh-operator.csv.yaml CSV file accordingly.

[github-actions]

PR images are available:

1. https://quay.io/rhdh-community/operator:0.3.4-pr-575-f7127e9
2. https://quay.io/rhdh-community/operator-bundle:0.3.4-pr-575-f7127e9
3. https://quay.io/rhdh-community/operator-catalog:0.3.4-pr-575-f7127e9